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Tricone Bit
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Recommended torque by bit size
Bit size
API screw
Recommended torque
in
mm
in
mm
ft-lbs3
N-M
3 1/2~4 1/2
89~114
2 3/8 REG.
60
3000-3500
4000-4800
4 5/8~5
118~127
2 7/8 REG.
73
6000-7000
8000-9500
5 1/8~7 3/8
137~187
3 1/2 REG.
89
7000-9000
9500-12000
7 5/8~9
194~229
4 1/2 REG.
114
12000-16000
16000-22000
9 1/2 ~28*
241~711
6 5/8 REG.
168
28000-32000
38000-43000
14 3/4~28*
375~711
6 5/8 REG.
168
28000-32000
38000-43000
7 5/8 REG.
194
34000-40000
46000-54000
18 1/2~28*
470~711
7 5/8 REG.
194
34000-40000
46000-54000
8 5/8 REG.
219
40000-60000
54000-81000
* Torque is largely related to a standard for a connected screw by bit size.
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in.
mm
lbs.
kg
lbs.
kg
3-1/2 to 3-7/8
89 to 98
10
5
12
5
4-3/4
121
15
7
20
9
5-7/8 to 6-3/4
149 to 159
35
16
45
20
6-1/2 to 6-3/4
165 to 172
45
20
55
25
7-3/8 to 8
187 to 203
75
34
85
39
8-1/8 to 8-1/2
206 to 216
90
41
95
43
8-5/8 to 9
219 to 229
95
43
100
45
9-1/8 to 9-1/2
232 to 241
125
57
130
59
9-5/8 to 9-7/8
245 to 251
135
61
145
66
10 to 10-5/8
254 to 270
165
75
175
80
11 to 11-7/8
279 to 302
195
89
210
95
12 to 12-1/4
305 to 311
205
93
225
102
13-1 to 24
337 to 381
345
157
380
173
16
406
410
186
450
205
17-1/2
445
515
234
545
248
18-1/2
470
525
239
570
259
20
508
625
284
700
318
22
559
1,000
455
1,170
532
24
610
1,385
629
1,400
636
26
660
1,450
659
1,550
704
28
711
1,550
704
1,650
750
¿¬°á³ª»çÀÇ ±Ô°Ý
ºñÆ® Å©±â
API±Ô°Ý ¿¬°á³ª»ç
in.
mm
in.
5-7/8 - 6-3/4
149 - 172
3-1/2 Reg.
7-5/8 - 8-3/4
194 - 222
4-1/2 Reg.
9-1/2 - 14-1/2
241 - 367
6-5/8 Reg.
14-3/4 - 18-1/2
374 - 470
6-5/8 Reg.or 7-5/8 Reg.
18-5/8 - 28
471 - 708
7-5/8 Reg.or 8-5/8 Reg.
Æ®¸®ÄÜ ºñÆ®ÀÇ Å©±âº° ±ÇÀåÅä¿ÀÅ©
ºñÆ® Å©±â
API ³ª»ç
±ÇÀå Åä¿ÀÅ©
in.
mm
in.
mm
ft-lbs.
N-m
3-1/2 to 4-1/2
89 to 114
2-3/8 Reg.
60
3,000 to 3,500
4,000 to 4,800
4-5/8 to 5
118 to 127
2-7/8 Reg.
73
6,000 to 9,000
8,000 to 9,500
5-1/8 to 7-3/4
139 to 187
3-1/2 Reg.
89
7,000 to 9,00
9,500 to 12,000
7-5/8 to 9
194 to 229
4-1/2 Reig.
114
12,000 to 16,000
16,000 to 22,000
9-1/2 to 28*
241 to 711
6-5/8 Reg.
168
28,000 to 32,000
38,000 to 43,000
14-3/4 to 28*
375 to 711
6-5/8 Reg.
168
28,000 to 32,000
38,000 to 43,000
or
or
7-5/8 Reg.
194
34,000 to 40,000
46,000 to 54,000
18-1/2 to 28*
470 to 711
7-5/8Reg.
194
34,000 to 40,000
46,000 to 54,000
or
or
8-5/8 Reg.
219
40,000 to 60,000
54,000 to 81,000