| Rank
|
Page title
|
Views
|
Daily average
|
Assessment
|
Importance
|
| 1
|
Bronze Age
|
90,798
|
2,928
|
C
|
Mid
|
| 2
|
Copper
|
75,113
|
2,423
|
GA
|
Low
|
| 3
|
Tata Steel
|
70,112
|
2,261
|
C
|
Mid
|
| 4
|
Iron Age
|
68,630
|
2,213
|
B
|
Low
|
| 5
|
Lead
|
66,188
|
2,135
|
FA
|
Low
|
| 6
|
Diamond
|
65,288
|
2,106
|
FA
|
Low
|
| 7
|
Hephaestus
|
65,118
|
2,100
|
C
|
Unknown
|
| 8
|
Stainless steel
|
58,142
|
1,875
|
C
|
Low
|
| 9
|
John Hughes (businessman)
|
57,878
|
1,867
|
Start
|
Low
|
| 10
|
Steel
|
57,598
|
1,858
|
GA
|
High
|
| 11
|
Sapphire
|
52,457
|
1,692
|
B
|
Low
|
| 12
|
Zinc
|
50,480
|
1,628
|
FA
|
Low
|
| 13
|
Tin
|
47,699
|
1,538
|
B
|
Low
|
| 14
|
Metal
|
46,712
|
1,506
|
C
|
High
|
| 15
|
Cobalt
|
46,290
|
1,493
|
GA
|
Mid
|
| 16
|
Thermite
|
45,723
|
1,474
|
C
|
Low
|
| 17
|
Tata Steel Europe
|
45,618
|
1,471
|
C
|
High
|
| 18
|
Johannes Gutenberg
|
45,185
|
1,457
|
B
|
Top
|
| 19
|
Avedis Zildjian Company
|
37,494
|
1,209
|
C
|
Mid
|
| 20
|
Damascus steel
|
34,612
|
1,116
|
C
|
Mid
|
| 21
|
U.S. Steel
|
30,247
|
975
|
B
|
Mid
|
| 22
|
Garnet
|
29,923
|
965
|
B
|
Low
|
| 23
|
Orichalcum
|
29,126
|
939
|
C
|
Mid
|
| 24
|
Hacksaw
|
27,364
|
882
|
C
|
Mid
|
| 25
|
Lakshmi Mittal
|
27,235
|
878
|
C
|
High
|
| 26
|
Numerical control
|
26,700
|
861
|
C
|
Top
|
| 27
|
Epoxy
|
25,325
|
816
|
C
|
Low
|
| 28
|
ThyssenKrupp
|
25,266
|
815
|
C
|
Mid
|
| 29
|
Lathe
|
25,218
|
813
|
C
|
Top
|
| 30
|
Sterling silver
|
23,912
|
771
|
B
|
Mid
|
| 31
|
Cloisonné
|
23,616
|
761
|
C
|
Low
|
| 32
|
Alloy
|
23,486
|
757
|
C
|
High
|
| 33
|
Corundum
|
22,463
|
724
|
C
|
Low
|
| 34
|
Blast furnace
|
22,218
|
716
|
B
|
Mid
|
| 35
|
Welding
|
21,870
|
705
|
FA
|
Top
|
| 36
|
Metallurgy
|
21,421
|
691
|
C
|
Low
|
| 37
|
ISO metric screw thread
|
21,032
|
678
|
C
|
Low
|
| 38
|
Silicon carbide
|
20,747
|
669
|
GA
|
Low
|
| 39
|
Pewter
|
20,483
|
660
|
C
|
Mid
|
| 40
|
Forged in Fire
|
20,458
|
659
|
C
|
Low
|
| 41
|
Blacksmith
|
19,422
|
626
|
C
|
Top
|
| 42
|
Milwaukee Tool
|
19,294
|
622
|
C
|
Low
|
| 43
|
Temple menorah
|
17,957
|
579
|
B
|
Mid
|
| 44
|
Gold bar
|
17,952
|
579
|
Start
|
Mid
|
| 45
|
Calipers
|
17,881
|
576
|
C
|
High
|
| 46
|
SAE 304 stainless steel
|
17,427
|
562
|
C
|
Mid
|
| 47
|
List of countries by steel production
|
16,963
|
547
|
List
|
Mid
|
| 48
|
Galvanization
|
16,874
|
544
|
C
|
Mid
|
| 49
|
Electroplating
|
16,811
|
542
|
C
|
High
|
| 50
|
Weighing scale
|
16,542
|
533
|
C
|
Low
|
| 51
|
6061 aluminium alloy
|
16,395
|
528
|
C
|
Low
|
| 52
|
Tungsten carbide
|
16,065
|
518
|
B
|
High
|
| 53
|
Brass instrument
|
15,758
|
508
|
C
|
Low
|
| 54
|
Steelmaking
|
15,335
|
494
|
Start
|
Low
|
| 55
|
Inconel
|
15,262
|
492
|
C
|
Low
|
| 56
|
Anvil
|
15,177
|
489
|
C
|
Top
|
| 57
|
Annealing (materials science)
|
14,570
|
470
|
C
|
Mid
|
| 58
|
Hammer
|
14,286
|
460
|
C
|
High
|
| 59
|
Slag
|
14,241
|
459
|
C
|
High
|
| 60
|
Smelting
|
13,968
|
450
|
C
|
Low
|
| 61
|
List of Forged in Fire episodes
|
13,795
|
445
|
List
|
Low
|
| 62
|
Milling (machining)
|
13,616
|
439
|
C
|
High
|
| 63
|
Ductility
|
13,362
|
431
|
Start
|
Mid
|
| 64
|
Patina
|
13,354
|
430
|
C
|
Low
|
| 65
|
Photokeratitis
|
13,267
|
427
|
Start
|
Low
|
| 66
|
Weathering steel
|
13,231
|
426
|
C
|
Mid
|
| 67
|
Screw
|
13,168
|
424
|
B
|
High
|
| 68
|
Sintering
|
13,080
|
421
|
C
|
Low
|
| 69
|
Hex key
|
13,013
|
419
|
C
|
Mid
|
| 70
|
Aluminium alloy
|
12,912
|
416
|
C
|
Mid
|
| 71
|
Counting Cars
|
12,672
|
408
|
Start
|
Low
|
| 72
|
Micrometer (device)
|
12,538
|
404
|
C
|
High
|
| 73
|
Nucor
|
12,445
|
401
|
C
|
Low
|
| 74
|
Solder
|
12,363
|
398
|
B
|
High
|
| 75
|
Rivet
|
12,112
|
390
|
C
|
Mid
|
| 76
|
Vernier scale
|
12,073
|
389
|
C
|
Mid
|
| 77
|
Steel Authority of India Limited
|
12,027
|
387
|
C
|
Mid
|
| 78
|
Anodizing
|
11,879
|
383
|
C
|
Mid
|
| 79
|
JSW Steel
|
11,748
|
378
|
Start
|
Low
|
| 80
|
Wootz steel
|
11,683
|
376
|
C
|
Unknown
|
| 81
|
Precious metal
|
11,607
|
374
|
C
|
Mid
|
| 82
|
Sling blade
|
11,557
|
372
|
Stub
|
Unknown
|
| 83
|
Adhesive
|
11,525
|
371
|
C
|
Low
|
| 84
|
Low-background steel
|
11,515
|
371
|
Start
|
Low
|
| 85
|
Metallurgical coal
|
11,474
|
370
|
Stub
|
Low
|
| 86
|
Alcoa
|
11,328
|
365
|
B
|
Low
|
| 87
|
Saw
|
11,134
|
359
|
C
|
Mid
|
| 88
|
Bullion
|
11,049
|
356
|
Start
|
Mid
|
| 89
|
Furniture
|
10,966
|
353
|
C
|
Mid
|
| 90
|
Oxy-fuel welding and cutting
|
10,939
|
352
|
C
|
High
|
| 91
|
Bluing (steel)
|
10,856
|
350
|
C
|
Low
|
| 92
|
Machinist
|
10,767
|
347
|
C
|
High
|
| 93
|
Electrical discharge machining
|
10,531
|
339
|
C
|
Top
|
| 94
|
Boilermaker
|
10,423
|
336
|
C
|
Low
|
| 95
|
G-code
|
10,404
|
335
|
C
|
Mid
|
| 96
|
Tempering (metallurgy)
|
10,404
|
335
|
C
|
High
|
| 97
|
Gas tungsten arc welding
|
10,396
|
335
|
FA
|
Top
|
| 98
|
Ball-peen hammer
|
10,287
|
331
|
C
|
Mid
|
| 99
|
Drill
|
10,259
|
330
|
C
|
Top
|
| 100
|
SAE 316L stainless steel
|
10,169
|
328
|
Start
|
Mid
|
| 101
|
POSCO
|
10,057
|
324
|
Start
|
Low
|
| 102
|
Forging
|
10,047
|
324
|
B
|
High
|
| 103
|
Lost-wax casting
|
9,989
|
322
|
C
|
High
|
| 104
|
Tape measure
|
9,913
|
319
|
Start
|
Low
|
| 105
|
Soldering
|
9,680
|
312
|
C
|
Top
|
| 106
|
Tubal-cain
|
9,651
|
311
|
C
|
Low
|
| 107
|
Hindalco Industries
|
9,589
|
309
|
Start
|
Low
|
| 108
|
Wrench
|
9,542
|
307
|
C
|
Mid
|
| 109
|
Aluminium foil
|
9,517
|
307
|
C
|
Low
|
| 110
|
Surface roughness
|
9,494
|
306
|
C
|
Mid
|
| 111
|
Vickers hardness test
|
9,470
|
305
|
C
|
Low
|
| 112
|
Flux (metallurgy)
|
9,420
|
303
|
C
|
Mid
|
| 113
|
Cupronickel
|
9,360
|
301
|
B
|
Mid
|
| 114
|
Screwdriver
|
9,298
|
299
|
C
|
High
|
| 115
|
Chisel
|
9,268
|
298
|
C
|
Mid
|
| 116
|
Boron nitride
|
9,211
|
297
|
GA
|
Low
|
| 117
|
Gauge block
|
9,135
|
294
|
C
|
Mid
|
| 118
|
Brazing
|
9,132
|
294
|
C
|
Top
|
| 119
|
Die casting
|
9,132
|
294
|
GA
|
Top
|
| 120
|
Casting
|
9,107
|
293
|
C
|
High
|
| 121
|
Shielded metal arc welding
|
8,987
|
289
|
C
|
Top
|
| 122
|
Millwright
|
8,978
|
289
|
C
|
Mid
|
| 123
|
Amorphous metal
|
8,961
|
289
|
Start
|
Low
|
| 124
|
7075 aluminium alloy
|
8,903
|
287
|
C
|
Low
|
| 125
|
American Restoration
|
8,899
|
287
|
Start
|
Low
|
| 126
|
Engraving
|
8,880
|
286
|
C
|
Mid
|
| 127
|
Roman dodecahedron
|
8,820
|
284
|
C
|
Low
|
| 128
|
Foundry
|
8,812
|
284
|
C
|
High
|
| 129
|
Port Talbot
|
8,795
|
283
|
C
|
Mid
|
| 130
|
National pipe thread
|
8,757
|
282
|
C
|
Mid
|
| 131
|
Chrome plating
|
8,726
|
281
|
C
|
High
|
| 132
|
Linotype machine
|
8,696
|
280
|
B
|
Mid
|
| 133
|
Sandpaper
|
8,692
|
280
|
C
|
Mid
|
| 134
|
Guédelon Castle
|
8,672
|
279
|
Start
|
Mid
|
| 135
|
Metalworking
|
8,557
|
276
|
B
|
Top
|
| 136
|
Crowbar
|
8,506
|
274
|
Start
|
Mid
|
| 137
|
SAE steel grades
|
8,317
|
268
|
List
|
Low
|
| 138
|
Arc welding
|
8,212
|
264
|
B
|
High
|
| 139
|
Korean sword
|
8,185
|
264
|
C
|
Unknown
|
| 140
|
Nickel silver
|
8,166
|
263
|
Start
|
Low
|
| 141
|
Unified Thread Standard
|
8,096
|
261
|
C
|
Mid
|
| 142
|
Machine tool
|
8,047
|
259
|
C
|
Top
|
| 143
|
Extrusion
|
7,961
|
256
|
B
|
Top
|
| 144
|
Drill bit
|
7,959
|
256
|
C
|
Top
|
| 145
|
Heat treating
|
7,939
|
256
|
C
|
Top
|
| 146
|
Sledgehammer
|
7,925
|
255
|
C
|
Unknown
|
| 147
|
Sandblasting
|
7,925
|
255
|
C
|
Mid
|
| 148
|
Monkey wrench
|
7,910
|
255
|
Start
|
Low
|
| 149
|
Gas metal arc welding
|
7,906
|
255
|
FA
|
Top
|
| 150
|
Austenitic stainless steel
|
7,891
|
254
|
C
|
Low
|
| 151
|
Chemical vapor deposition
|
7,839
|
252
|
C
|
Mid
|
| 152
|
Direct reduced iron
|
7,708
|
248
|
Start
|
Unknown
|
| 153
|
Nippon Steel
|
7,697
|
248
|
Start
|
Low
|
| 154
|
Vale S.A.
|
7,681
|
247
|
B
|
High
|
| 155
|
Tool and die maker
|
7,662
|
247
|
C
|
Mid
|
| 156
|
Ti-6Al-4V
|
7,595
|
245
|
C
|
Low
|
| 157
|
Screw thread
|
7,573
|
244
|
C
|
High
|
| 158
|
British Standard Pipe
|
7,573
|
244
|
C
|
Mid
|
| 159
|
Adamant
|
7,546
|
243
|
Start
|
Low
|
| 160
|
Essar Group
|
7,520
|
242
|
C
|
Low
|
| 161
|
British Standard Whitworth
|
7,405
|
238
|
C
|
Mid
|
| 162
|
Steel grades
|
7,346
|
236
|
List
|
Mid
|
| 163
|
Utah monolith
|
7,330
|
236
|
C
|
Low
|
| 164
|
Ferrous metallurgy
|
7,305
|
235
|
B
|
High
|
| 165
|
Wood's metal
|
7,243
|
233
|
C
|
Low
|
| 166
|
Wayland the Smith
|
7,131
|
230
|
C
|
Low
|
| 167
|
List of copper alloys
|
7,091
|
228
|
List
|
Unknown
|
| 168
|
Bronze Age Europe
|
7,068
|
228
|
Start
|
Mid
|
| 169
|
Filigree
|
7,065
|
227
|
C
|
Low
|
| 170
|
Sheet metal
|
7,054
|
227
|
C
|
Top
|
| 171
|
Zamak
|
7,047
|
227
|
B
|
Unknown
|
| 172
|
Rolling (metalworking)
|
7,034
|
226
|
C
|
Top
|
| 173
|
Ferrite (magnet)
|
7,011
|
226
|
C
|
Mid
|
| 174
|
Ruler
|
7,005
|
225
|
Start
|
Low
|
| 175
|
Bloomery
|
6,935
|
223
|
Start
|
Low
|
| 176
|
Water jet cutter
|
6,886
|
222
|
C
|
High
|
| 177
|
Steel mill
|
6,852
|
221
|
Start
|
High
|
| 178
|
MAPP gas
|
6,783
|
218
|
C
|
Mid
|
| 179
|
Babbitt (alloy)
|
6,763
|
218
|
Start
|
Low
|
| 180
|
Candelabra
|
6,720
|
216
|
Start
|
Low
|
| 181
|
Lock picking
|
6,647
|
214
|
C
|
Low
|
| 182
|
Goldsmith
|
6,646
|
214
|
C
|
Low
|
| 183
|
Die (manufacturing)
|
6,543
|
211
|
C
|
Top
|
| 184
|
Coordinate-measuring machine
|
6,522
|
210
|
C
|
Mid
|
| 185
|
Nickel titanium
|
6,471
|
208
|
C
|
Low
|
| 186
|
Engineering fit
|
6,464
|
208
|
Start
|
Low
|
| 187
|
Mallet
|
6,417
|
207
|
C
|
Low
|
| 188
|
High-speed steel
|
6,391
|
206
|
C
|
High
|
| 189
|
Porosity
|
6,382
|
205
|
Start
|
Mid
|
| 190
|
Relativity Space
|
6,377
|
205
|
C
|
Unknown
|
| 191
|
Superalloy
|
6,344
|
204
|
C
|
Mid
|
| 192
|
Cold welding
|
6,325
|
204
|
Start
|
Mid
|
| 193
|
Metal casting
|
6,324
|
204
|
C
|
Top
|
| 194
|
Powder metallurgy
|
6,316
|
203
|
C
|
High
|
| 195
|
Laser cutting
|
6,316
|
203
|
C
|
Top
|
| 196
|
Washer (hardware)
|
6,255
|
201
|
C
|
Mid
|
| 197
|
Toughness
|
6,239
|
201
|
C
|
Mid
|
| 198
|
Haas Automation
|
6,218
|
200
|
Stub
|
Low
|
| 199
|
Nichrome
|
6,194
|
199
|
C
|
Unknown
|
| 200
|
Sand casting
|
6,177
|
199
|
C
|
Top
|
| 201
|
Allotropes of iron
|
6,157
|
198
|
C
|
Low
|
| 202
|
Nail (fastener)
|
6,125
|
197
|
C
|
Low
|
| 203
|
Fastener
|
6,054
|
195
|
Start
|
High
|
| 204
|
Work hardening
|
6,001
|
193
|
C
|
Top
|
| 205
|
Martensite
|
5,999
|
193
|
C
|
Unknown
|
| 206
|
Welder
|
5,979
|
192
|
Start
|
High
|
| 207
|
Gilding
|
5,964
|
192
|
C
|
Mid
|
| 208
|
Bolt (fastener)
|
5,932
|
191
|
Start
|
High
|
| 209
|
Austenite
|
5,923
|
191
|
C
|
Low
|
| 210
|
Quenching
|
5,910
|
190
|
Start
|
Top
|
| 211
|
Hilt
|
5,860
|
189
|
C
|
Low
|
| 212
|
Phosphate conversion coating
|
5,841
|
188
|
C
|
Low
|
| 213
|
Torque wrench
|
5,811
|
187
|
C
|
High
|
| 214
|
Soldering iron
|
5,795
|
186
|
C
|
Low
|
| 215
|
Metal fabrication
|
5,748
|
185
|
C
|
Top
|
| 216
|
Ingot
|
5,747
|
185
|
Start
|
High
|
| 217
|
Japanning
|
5,711
|
184
|
Start
|
Low
|
| 218
|
Machining
|
5,707
|
184
|
C
|
Top
|
| 219
|
Chamfer
|
5,707
|
184
|
Start
|
Low
|
| 220
|
Shear force
|
5,670
|
182
|
Stub
|
Low
|
| 221
|
Honing (metalworking)
|
5,661
|
182
|
C
|
High
|
| 222
|
A36 steel
|
5,650
|
182
|
Start
|
Low
|
| 223
|
Hot-dip galvanization
|
5,561
|
179
|
C
|
Mid
|
| 224
|
Chain
|
5,561
|
179
|
Start
|
Unknown
|
| 225
|
Fritz Thyssen
|
5,553
|
179
|
Start
|
Low
|
| 226
|
Tap and die
|
5,534
|
178
|
C
|
Top
|
| 227
|
Metal fume fever
|
5,531
|
178
|
C
|
Low
|
| 228
|
Circular saw
|
5,516
|
177
|
C
|
Mid
|
| 229
|
Galinstan
|
5,491
|
177
|
C
|
Low
|
| 230
|
Case-hardening
|
5,458
|
176
|
B
|
High
|
| 231
|
Hydraulic press
|
5,454
|
175
|
Start
|
High
|
| 232
|
Tinker
|
5,445
|
175
|
C
|
Low
|
| 233
|
Thousandth of an inch
|
5,388
|
173
|
C
|
Low
|
| 234
|
M3 trench knife
|
5,385
|
173
|
Start
|
Low
|
| 235
|
Tin foil
|
5,369
|
173
|
Stub
|
Low
|
| 236
|
Pliers
|
5,365
|
173
|
C
|
Mid
|
| 237
|
Drill bit sizes
|
5,285
|
170
|
C
|
Mid
|
| 238
|
Plasma cutting
|
5,267
|
169
|
C
|
High
|
| 239
|
Howmet Aerospace
|
5,265
|
169
|
C
|
Low
|
| 240
|
Port Talbot Steelworks
|
5,258
|
169
|
Start
|
Mid
|
| 241
|
Power tool
|
5,248
|
169
|
C
|
Mid
|
| 242
|
Giga Press
|
5,236
|
168
|
C
|
Low
|
| 243
|
Beryllium copper
|
5,220
|
168
|
B
|
Unknown
|
| 244
|
Precipitation hardening
|
5,193
|
167
|
C
|
Top
|
| 245
|
Pipe wrench
|
5,188
|
167
|
Start
|
Low
|
| 246
|
Angle grinder
|
5,181
|
167
|
Start
|
Mid
|
| 247
|
Knurling
|
5,176
|
166
|
C
|
Mid
|
| 248
|
Maraging steel
|
5,169
|
166
|
C
|
Low
|
| 249
|
Bronze Age sword
|
5,093
|
164
|
C
|
Low
|
| 250
|
Structural steel
|
5,053
|
163
|
C
|
Low
|
| 251
|
Gundestrup cauldron
|
5,034
|
162
|
B
|
Mid
|
| 252
|
Selective laser sintering
|
5,018
|
161
|
C
|
Low
|
| 253
|
17-4 stainless steel
|
4,917
|
158
|
Stub
|
Low
|
| 254
|
Selective laser melting
|
4,890
|
157
|
C
|
Mid
|
| 255
|
Azovstal Iron and Steel Works
|
4,860
|
156
|
C
|
Unknown
|
| 256
|
Friction stir welding
|
4,839
|
156
|
B
|
Mid
|
| 257
|
Hyperbaric welding
|
4,837
|
156
|
C
|
Mid
|
| 258
|
Ironworker
|
4,826
|
155
|
B
|
Low
|
| 259
|
Gunmetal
|
4,796
|
154
|
Start
|
Low
|
| 260
|
Bellows
|
4,784
|
154
|
C
|
Low
|
| 261
|
Sharpening stone
|
4,768
|
153
|
C
|
Low
|
| 262
|
Betz mystery sphere
|
4,743
|
153
|
Start
|
Low
|
| 263
|
Aluminium bronze
|
4,724
|
152
|
Start
|
Low
|
| 264
|
Duplex stainless steel
|
4,704
|
151
|
C
|
Low
|
| 265
|
Adjustable spanner
|
4,635
|
149
|
Start
|
Low
|
| 266
|
Forge
|
4,629
|
149
|
C
|
High
|
| 267
|
Guilloché
|
4,593
|
148
|
C
|
Low
|
| 268
|
File (tool)
|
4,591
|
148
|
C
|
High
|
| 269
|
Helladic chronology
|
4,580
|
147
|
B
|
High
|
| 270
|
Impact driver
|
4,572
|
147
|
Stub
|
Low
|
| 271
|
Primer (paint)
|
4,541
|
146
|
Start
|
Low
|
| 272
|
Hallmark
|
4,501
|
145
|
Start
|
Unknown
|
| 273
|
Socket wrench
|
4,486
|
144
|
C
|
Mid
|
| 274
|
Iron and steel industry in the United States
|
4,392
|
141
|
C
|
Low
|
| 275
|
Thyssen AG
|
4,386
|
141
|
Start
|
Low
|
| 276
|
Tool steel
|
4,335
|
139
|
C
|
High
|
| 277
|
Mandrel
|
4,335
|
139
|
C
|
Mid
|
| 278
|
Cold working
|
4,294
|
138
|
C
|
High
|
| 279
|
Engineering tolerance
|
4,285
|
138
|
C
|
Mid
|
| 280
|
Abrasive
|
4,281
|
138
|
C
|
Low
|
| 281
|
List of welding codes
|
4,278
|
138
|
List
|
Low
|
| 282
|
Chromium–vanadium steel
|
4,260
|
137
|
Stub
|
High
|
| 283
|
Stamping (metalworking)
|
4,212
|
135
|
Start
|
High
|
| 284
|
Gauge (instrument)
|
4,200
|
135
|
List
|
Low
|
| 285
|
Smithing gods
|
4,193
|
135
|
List
|
Low
|
| 286
|
6063 aluminium alloy
|
4,182
|
134
|
Stub
|
Low
|
| 287
|
Emery (rock)
|
4,128
|
133
|
Start
|
Low
|
| 288
|
Coating
|
4,119
|
132
|
Start
|
Mid
|
| 289
|
Self-tapping screw
|
4,117
|
132
|
C
|
Low
|
| 290
|
Locksmithing
|
4,022
|
129
|
C
|
Low
|
| 291
|
Dross
|
4,003
|
129
|
Start
|
Mid
|
| 292
|
Invar
|
3,989
|
128
|
B
|
Low
|
| 293
|
Silver hallmarks
|
3,965
|
127
|
C
|
Low
|
| 294
|
Hardware store
|
3,963
|
127
|
Start
|
Mid
|
| 295
|
Locking pliers
|
3,912
|
126
|
Start
|
Low
|
| 296
|
Steel wool
|
3,892
|
125
|
Start
|
Low
|
| 297
|
Exothermic welding
|
3,881
|
125
|
Start
|
Low
|
| 298
|
Repoussé and chasing
|
3,851
|
124
|
C
|
Mid
|
| 299
|
Thermal lance
|
3,838
|
123
|
Start
|
Low
|
| 300
|
Ferrule
|
3,833
|
123
|
Start
|
Mid
|
| 301
|
Gold plating
|
3,818
|
123
|
C
|
Low
|
| 302
|
Investment casting
|
3,809
|
122
|
C
|
Top
|
| 303
|
Wire rope
|
3,803
|
122
|
C
|
High
|
| 304
|
Magnetic particle inspection
|
3,791
|
122
|
Start
|
Mid
|
| 305
|
Vise
|
3,791
|
122
|
C
|
High
|
| 306
|
Aluminium–silicon alloys
|
3,780
|
121
|
C
|
Low
|
| 307
|
41xx steel
|
3,774
|
121
|
Start
|
Low
|
| 308
|
Drilling
|
3,761
|
121
|
C
|
Top
|
| 309
|
Interference fit
|
3,761
|
121
|
C
|
Low
|
| 310
|
Silver-gilt
|
3,748
|
120
|
C
|
Low
|
| 311
|
Spot welding
|
3,735
|
120
|
C
|
Top
|
| 312
|
Broaching (metalworking)
|
3,722
|
120
|
GA
|
High
|
| 313
|
Cementite
|
3,721
|
120
|
C
|
Mid
|
| 314
|
Countersink
|
3,695
|
119
|
Start
|
Mid
|
| 315
|
Tamahagane
|
3,681
|
118
|
Start
|
High
|
| 316
|
Swaging
|
3,678
|
118
|
B
|
High
|
| 317
|
Metal lathe
|
3,668
|
118
|
C
|
Top
|
| 318
|
Krupp armour
|
3,659
|
118
|
Start
|
Mid
|
| 319
|
Gunsmith
|
3,637
|
117
|
C
|
Low
|
| 320
|
Razor strop
|
3,636
|
117
|
Start
|
Low
|
| 321
|
Mineral processing
|
3,631
|
117
|
Start
|
Top
|
| 322
|
Metalsmith
|
3,624
|
116
|
C
|
Top
|
| 323
|
Pitting corrosion
|
3,614
|
116
|
Start
|
Low
|
| 324
|
Puddling (metallurgy)
|
3,611
|
116
|
C
|
Low
|
| 325
|
Bronze sculpture
|
3,584
|
115
|
C
|
Low
|
| 326
|
Dye penetrant inspection
|
3,581
|
115
|
C
|
Mid
|
| 327
|
Computer-aided manufacturing
|
3,574
|
115
|
C
|
High
|
| 328
|
Machine taper
|
3,536
|
114
|
C
|
High
|
| 329
|
Thyssen family
|
3,508
|
113
|
Start
|
Low
|
| 330
|
Workshop
|
3,493
|
112
|
Stub
|
Low
|
| 331
|
2024 aluminium alloy
|
3,484
|
112
|
Stub
|
Low
|
| 332
|
High-strength low-alloy steel
|
3,468
|
111
|
Start
|
Low
|
| 333
|
Trapezoidal thread form
|
3,429
|
110
|
B
|
Mid
|
| 334
|
Reamer
|
3,426
|
110
|
C
|
Top
|
| 335
|
Bandsaw
|
3,418
|
110
|
C
|
High
|
| 336
|
Carburizing
|
3,415
|
110
|
C
|
High
|
| 337
|
Cutting fluid
|
3,410
|
110
|
B
|
Mid
|
| 338
|
Diagonal pliers
|
3,403
|
109
|
Start
|
Low
|
| 339
|
Tarnish
|
3,377
|
108
|
Start
|
Low
|
| 340
|
Mokume-gane
|
3,360
|
108
|
C
|
Low
|
| 341
|
Arconic
|
3,344
|
107
|
C
|
Unknown
|
| 342
|
Grinding (abrasive cutting)
|
3,285
|
105
|
C
|
Top
|
| 343
|
Pickling (metal)
|
3,283
|
105
|
C
|
Mid
|
| 344
|
Ultrasonic testing
|
3,267
|
105
|
C
|
Mid
|
| 345
|
Nickel electroplating
|
3,266
|
105
|
C
|
Mid
|
| 346
|
Toledo steel
|
3,262
|
105
|
Start
|
Unknown
|
| 347
|
Pearlite
|
3,261
|
105
|
C
|
Low
|
| 348
|
Tin sources and trade during antiquity
|
3,248
|
104
|
B
|
Low
|
| 349
|
Plating
|
3,245
|
104
|
Start
|
Top
|
| 350
|
Flux-cored arc welding
|
3,198
|
103
|
C
|
Mid
|
| 351
|
Ormolu
|
3,189
|
102
|
C
|
Low
|
| 352
|
Grinding machine
|
3,176
|
102
|
Start
|
Mid
|
| 353
|
Speeds and feeds
|
3,174
|
102
|
C
|
High
|
| 354
|
Jig (tool)
|
3,154
|
101
|
Start
|
High
|
| 355
|
Ultrasonic welding
|
3,150
|
101
|
B
|
Mid
|
| 356
|
Hand tool
|
3,124
|
100
|
Start
|
Low
|
| 357
|
Go/no-go gauge
|
3,122
|
100
|
C
|
Low
|
| 358
|
Dremel
|
3,106
|
100
|
C
|
Low
|
| 359
|
White metal
|
3,099
|
99
|
C
|
Unknown
|
| 360
|
Tinsmith
|
3,082
|
99
|
B
|
Low
|
| 361
|
Laser beam welding
|
3,045
|
98
|
C
|
Mid
|
| 362
|
Trip hammer
|
3,042
|
98
|
B
|
Mid
|
| 363
|
Cutting
|
3,034
|
97
|
Start
|
Mid
|
| 364
|
Martensitic stainless steel
|
3,031
|
97
|
Start
|
Low
|
| 365
|
Tongs
|
3,027
|
97
|
Start
|
Low
|
| 366
|
Shot tower
|
3,018
|
97
|
Start
|
Low
|
| 367
|
Inconel 625
|
2,979
|
96
|
C
|
Low
|
| 368
|
Turning
|
2,977
|
96
|
C
|
Top
|
| 369
|
Warded lock
|
2,920
|
94
|
Start
|
Mid
|
| 370
|
Lapping
|
2,910
|
93
|
C
|
High
|
| 371
|
Induction furnace
|
2,907
|
93
|
Start
|
Low
|
| 372
|
Nitriding
|
2,906
|
93
|
C
|
High
|
| 373
|
List of welding processes
|
2,881
|
92
|
List
|
Low
|
| 374
|
Chain-link fencing
|
2,871
|
92
|
C
|
Low
|
| 375
|
Crimp (joining)
|
2,867
|
92
|
Start
|
Mid
|
| 376
|
Crystallite
|
2,865
|
92
|
C
|
Mid
|
| 377
|
Shot peening
|
2,852
|
92
|
Start
|
High
|
| 378
|
Andiron
|
2,847
|
91
|
C
|
Low
|
| 379
|
Mill scale
|
2,840
|
91
|
Stub
|
Low
|
| 380
|
Warren Cup
|
2,838
|
91
|
B
|
Low
|
| 381
|
Mannesmann
|
2,823
|
91
|
Start
|
Low
|
| 382
|
Metal foam
|
2,771
|
89
|
C
|
Low
|
| 383
|
Reflow soldering
|
2,750
|
88
|
C
|
Low
|
| 384
|
Ridgid
|
2,748
|
88
|
Stub
|
Low
|
| 385
|
Ferroalloy
|
2,746
|
88
|
C
|
Mid
|
| 386
|
Tinplate
|
2,715
|
87
|
C
|
Mid
|
| 387
|
Niello
|
2,710
|
87
|
Start
|
Low
|
| 388
|
Grindstone
|
2,707
|
87
|
Start
|
Low
|
| 389
|
Miter saw
|
2,654
|
85
|
Start
|
Low
|
| 390
|
History of the iron and steel industry in the United States
|
2,653
|
85
|
Start
|
Low
|
| 391
|
Dead-blow hammer
|
2,643
|
85
|
Stub
|
Low
|
| 392
|
Eddy-current testing
|
2,642
|
85
|
Start
|
Low
|
| 393
|
Plácido Zuloaga
|
2,638
|
85
|
GA
|
Mid
|
| 394
|
Forge welding
|
2,631
|
84
|
C
|
Mid
|
| 395
|
Joseph Whitworth
|
2,627
|
84
|
C
|
Low
|
| 396
|
Miter joint
|
2,613
|
84
|
C
|
Low
|
| 397
|
SAE 904L stainless steel
|
2,610
|
84
|
Start
|
Mid
|
| 398
|
Recrystallization (metallurgy)
|
2,609
|
84
|
B
|
Unknown
|
| 399
|
Chuck (engineering)
|
2,605
|
84
|
C
|
High
|
| 400
|
Rajesh Exports
|
2,588
|
83
|
Start
|
Mid
|
| 401
|
Silversmith
|
2,587
|
83
|
C
|
Mid
|
| 402
|
Cold-formed steel
|
2,583
|
83
|
B
|
Unknown
|
| 403
|
Rasp
|
2,582
|
83
|
Start
|
Low
|
| 404
|
Iron Age Scandinavia
|
2,582
|
83
|
C
|
Low
|
| 405
|
HY-80
|
2,573
|
83
|
B
|
Low
|
| 406
|
Trundholm sun chariot
|
2,562
|
82
|
Start
|
Low
|
| 407
|
Santa's workshop
|
2,561
|
82
|
Start
|
Low
|
| 408
|
Silver standards
|
2,552
|
82
|
C
|
Unknown
|
| 409
|
Rust converter
|
2,546
|
82
|
C
|
Unknown
|
| 410
|
Whitechapel Bell Foundry
|
2,537
|
81
|
Start
|
Low
|
| 411
|
Coping saw
|
2,530
|
81
|
Start
|
Low
|
| 412
|
Polishing (metalworking)
|
2,514
|
81
|
B
|
Mid
|
| 413
|
Collet
|
2,513
|
81
|
C
|
High
|
| 414
|
List of drill and tap sizes
|
2,509
|
80
|
List
|
Low
|
| 415
|
Copper electroplating
|
2,505
|
80
|
C
|
Low
|
| 416
|
Aluminium–lithium alloys
|
2,488
|
80
|
Start
|
Low
|
| 417
|
Pattern welding
|
2,477
|
79
|
C
|
Mid
|
| 418
|
Precision Castparts Corp.
|
2,477
|
79
|
Start
|
Low
|
| 419
|
Matthew Boulton
|
2,475
|
79
|
FA
|
Mid
|
| 420
|
Scarf joint
|
2,470
|
79
|
Start
|
Low
|
| 421
|
Cutting tool (machining)
|
2,466
|
79
|
Start
|
High
|
| 422
|
Aluminium–copper alloys
|
2,452
|
79
|
B
|
Low
|
| 423
|
List of manufacturing processes
|
2,440
|
78
|
List
|
Mid
|
| 424
|
Milling cutter
|
2,440
|
78
|
C
|
Top
|
| 425
|
Electrochemical machining
|
2,423
|
78
|
C
|
Low
|
| 426
|
Plasma torch
|
2,418
|
78
|
C
|
Low
|
| 427
|
Ancient furniture
|
2,407
|
77
|
C
|
Low
|
| 428
|
Cobalt-chrome
|
2,398
|
77
|
B
|
Unknown
|
| 429
|
Perforation
|
2,392
|
77
|
C
|
Mid
|
| 430
|
Ashtadhatu
|
2,391
|
77
|
Stub
|
Low
|
| 431
|
Metal roof
|
2,389
|
77
|
C
|
Low
|
| 432
|
Machine shop
|
2,374
|
76
|
C
|
Low
|
| 433
|
Decorative box
|
2,371
|
76
|
C
|
Low
|
| 434
|
Feeler gauge
|
2,361
|
76
|
C
|
Low
|
| 435
|
Submerged arc welding
|
2,358
|
76
|
C
|
Mid
|
| 436
|
Pot metal
|
2,358
|
76
|
C
|
Unknown
|
| 437
|
Hamon (swordsmithing)
|
2,358
|
76
|
Start
|
Low
|
| 438
|
Spindle (tool)
|
2,348
|
75
|
Stub
|
Mid
|
| 439
|
Fillet weld
|
2,347
|
75
|
Start
|
Low
|
| 440
|
Cupellation
|
2,345
|
75
|
B
|
Unknown
|
| 441
|
Electron-beam welding
|
2,344
|
75
|
C
|
Mid
|
| 442
|
Scunthorpe Steelworks
|
2,342
|
75
|
C
|
Low
|
| 443
|
Liberty Steel Group
|
2,342
|
75
|
Start
|
Low
|
| 444
|
Continuous casting
|
2,329
|
75
|
C
|
High
|
| 445
|
Field's metal
|
2,329
|
75
|
Stub
|
Low
|
| 446
|
Clamp (tool)
|
2,316
|
74
|
Start
|
Mid
|
| 447
|
Electroless nickel-phosphorus plating
|
2,313
|
74
|
C
|
Mid
|
| 448
|
Mining and metallurgy in medieval Europe
|
2,307
|
74
|
C
|
Unknown
|
| 449
|
5083 aluminium alloy
|
2,291
|
73
|
Stub
|
Low
|
| 450
|
Roller chain
|
2,287
|
73
|
Start
|
Mid
|
| 451
|
Mesh
|
2,282
|
73
|
Start
|
Low
|
| 452
|
Ferrosilicon
|
2,281
|
73
|
Start
|
Low
|
| 453
|
Shakudō
|
2,273
|
73
|
Start
|
Unknown
|
| 454
|
Bending (metalworking)
|
2,259
|
72
|
C
|
Top
|
| 455
|
Scriber
|
2,253
|
72
|
C
|
Low
|
| 456
|
Thermal spraying
|
2,244
|
72
|
C
|
Mid
|
| 457
|
Electron backscatter diffraction
|
2,231
|
71
|
GA
|
Low
|
| 458
|
Marine grade stainless
|
2,225
|
71
|
C
|
Low
|
| 459
|
Mac Tools
|
2,223
|
71
|
Stub
|
Low
|
| 460
|
Electropolishing
|
2,216
|
71
|
C
|
Low
|
| 461
|
Mildenhall Treasure
|
2,211
|
71
|
B
|
Mid
|
| 462
|
Ferritic stainless steel
|
2,206
|
71
|
Start
|
Low
|
| 463
|
Wave soldering
|
2,204
|
71
|
C
|
Low
|
| 464
|
Damascening
|
2,202
|
71
|
Stub
|
Low
|
| 465
|
6082 aluminium alloy
|
2,195
|
70
|
Stub
|
Low
|
| 466
|
Ironmongery
|
2,186
|
70
|
Start
|
Mid
|
| 467
|
5052 aluminium alloy
|
2,184
|
70
|
Stub
|
Low
|
| 468
|
Peening
|
2,168
|
69
|
Start
|
High
|
| 469
|
Plasma arc welding
|
2,145
|
69
|
C
|
Low
|
| 470
|
Punch (tool)
|
2,144
|
69
|
C
|
Mid
|
| 471
|
Boring (manufacturing)
|
2,141
|
69
|
C
|
High
|
| 472
|
Tin pest
|
2,139
|
69
|
C
|
Low
|
| 473
|
Aperam
|
2,134
|
68
|
Start
|
Low
|
| 474
|
Oxygen-free copper
|
2,130
|
68
|
C
|
Low
|
| 475
|
Kaiser Steel
|
2,130
|
68
|
C
|
Low
|
| 476
|
Friction welding
|
2,127
|
68
|
C
|
Mid
|
| 477
|
Kanthal (alloy)
|
2,127
|
68
|
Start
|
Unknown
|
| 478
|
Gerdau
|
2,114
|
68
|
Start
|
Low
|
| 479
|
Hugo Stinnes
|
2,112
|
68
|
Start
|
Low
|
| 480
|
ASTM A992
|
2,102
|
67
|
Stub
|
Low
|
| 481
|
Knife sharpening
|
2,101
|
67
|
C
|
Low
|
| 482
|
Brasso
|
2,097
|
67
|
C
|
Mid
|
| 483
|
Residual stress
|
2,091
|
67
|
C
|
Low
|
| 484
|
Liquidmetal
|
2,075
|
66
|
C
|
Low
|
| 485
|
Scale ruler
|
2,074
|
66
|
Start
|
Low
|
| 486
|
Coining (mint)
|
2,066
|
66
|
C
|
Low
|
| 487
|
Counterbore
|
2,059
|
66
|
Start
|
Mid
|
| 488
|
Metal injection molding
|
2,056
|
66
|
Start
|
Mid
|
| 489
|
Mold gold cape
|
2,047
|
66
|
C
|
Unknown
|
| 490
|
Welding helmet
|
2,045
|
65
|
Start
|
Low
|
| 491
|
Welding Procedure Specification
|
2,040
|
65
|
Start
|
Low
|
| 492
|
Whitesmith
|
2,029
|
65
|
Start
|
Low
|
| 493
|
French nail
|
2,013
|
64
|
Start
|
Low
|
| 494
|
Drill bit shank
|
2,012
|
64
|
C
|
High
|
| 495
|
Hypereutectic piston
|
2,008
|
64
|
Start
|
Low
|
| 496
|
440C
|
2,007
|
64
|
Stub
|
Low
|
| 497
|
Titanium carbide
|
2,001
|
64
|
Start
|
Low
|
| 498
|
Goldbeater's skin
|
1,986
|
64
|
Start
|
Unknown
|
| 499
|
Roman metallurgy
|
1,984
|
64
|
C
|
Unknown
|
| 500
|
Solder paste
|
1,977
|
63
|
C
|
Mid
|
