See Chapman torque charts below to see our tool’s average working and breaking torques.
| Part Number | Approximate Working Torque | Approximate Breaking Torque | Recommended Tools |
| .050" | 5" lb | 6.5" lb | Finger or spinner pressure |
| 1/16" | 9.5" lb | 12.5" lb | Finger or spinner pressure |
| 5/64" | 20" lb | 25" lb | Screwdriver handle pressure |
| 3/32" | 36" lb | 43" lb | Screwdriver handle pressure |
| 7/64" | 57" lb | 68" lb | Ratchet or screwdriver handle pressure |
| 1/8" | 86" lb | 100" lb | Ratchet or screwdriver handle pressure |
| 9/64" | 125" lb | 145" lb | Ratchet or screwdriver handle pressure |
| 5/32"* | 170" lb | 200" lb | Ratchet or screwdriver handle pressure |
| 3/16"* | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
| 7/32"* | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
| 1/4"* | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
| 5/16"* | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
*Actual working/breaking torque of these bits exceeds that of our ratchet and handle. We do not recommend exceeding this torque, as it will cause damage to your tools.
| Part Number | Approximate Working Torque | Approximate Breaking Torque | Recommended Tool |
| 1.5mm | 5" lb | 6.5" lb | Finger or spinner pressure |
| 2mm | 20" lb | 25" lb | Screwdriver handle pressure |
| 2.5mm | 36" lb | 43" lb | Screwdriver handle pressure |
| 3mm | 57" lb |
68" lb |
Ratchet or screwdriver handle pressure |
| 4mm | 125" lb | 145" lb | Ratchet or screwdriver handle pressure |
| 4.5mm* | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
| 5mm* | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
| 5.5mm* | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
| 6mm* | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
| 7mm* | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
| 8mm* | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
*Actual working/breaking torque of these bits exceeds that of our ratchet and handle. We do not recommend exceeding this torque, as it will cause damage to your tools.
| Part Number | Approximate Working Torque | Approximate Breaking Torque | Recommended Tool |
| 88 | 15" lb | 17" lb | Finger or spinner pressure |
| 89 | 16" lb | 18" lb | Finger or spinner pressure |
| 90 | 17" lb | 19" lb | Finger or spinner pressure |
| 91 | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
| 92 | 17" lb | 19" lb | Finger or spinner pressure |
| 25 | 45" lb | 50" lb | Screwdriver handle pressure |
| 26 | 67" lb | 75" lb | Ratchet or screwdriver handle pressure |
| 93 | 67" lb | 75" lb | Ratchet or screwdriver handle pressure |
| 17 | 94" lb | 105" lb | Ratchet or screwdriver handle pressure |
| 95 | 103" lb | 115" lb | Ratchet or screwdriver handle pressure |
| 96 | 135" lb | 150" lb | Ratchet or screwdriver handle pressure |
| 97 | 99" lb | 110" lb | Ratchet or screwdriver handle pressure |
| 98 | 144" lb | 160" lb | Ratchet or screwdriver handle pressure |
| 19 | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
| Part Number | Approximate Working Torque | Approximate Breaking Torque | Recommended Tool |
| P1 | 25" lb | 30" lb | Screwdriver handle pressure |
| P2 | 60" lb | 65" lb | Ratchet or screwdriver handle pressure |
| P3 | 160" lb | 200" lb | Ratchet or screwdriver handle pressure |
| P4* | 180" | 200" lb | Ratchet or screwdriver handle pressure |
*Actual working/breaking torque of these bits exceeds that of our ratchet and handle. We do not recommend exceeding this torque, as it will cause damage to your tools.
| Part Number | Approximate Working Torque | Approximate Breaking Torque | Recommended Tool |
| S6 | 5" lb | 6.5" lb | Finger or spinner pressure |
| S8 | 12" lb | 16" lb | Finger or spinner pressure |
| S10 | 20" lb | 45" lb | Screwdriver handle pressure |
| S15 | 34" lb | 68" lb | Screwdriver handle pressure |
| S20 | 56" lb | 108" lb | Ratchet or screwdriver handle pressure |
| S25 | 84" lb | 168" lb | Ratchet or screwdriver handle pressure |
| S30 | 166" lb | 200" lb | Ratchet or screwdriver handle pressure |
| S40 | 180" lb | 200" lb | Ratchet or screwdriver handle pressure |
| Part Number | Approximate Working Torque | Approximate Breaking Torque | Recommended Tool |
|
24 (Socket adapter) |
180" lb | 200"lb | Ratchet or screwdriver handle pressure |
This torque conversion calculator can help you convert inch pounds to Newton millimeters.
|
Pound/Inch |
N/mm |
|
1 pound/inch |
0.17513 N/mm |
|
5 pound/inch |
0.87563 N/mm |
|
10 pound/inch |
1.75127 N/mm |
|
15 pound/inch |
2.62690 N/mm |
|
20 pound/inch |
3.50254 N/mm |
|
25 pound/inch |
4.37817 N/mm |
|
30 pound/inch |
5.25381 N/mm |
|
35 pound/inch |
6.12943 N/mm |
|
40 pound/inch |
7.00507 N/mm |
|
45 pound/inch |
7.88070 N/mm |
|
50 pound/inch |
8.75634 N/mm |
|
55 pound/inch |
9.63197 N/mm |
|
60 pound/inch |
10.50761 N/mm |
|
65 pound/inch |
11.38324 N/mm |
|
70 pound/inch |
12.25887 N/mm |
|
75 pound/inch |
13.13451 N/mm |
|
80 pound/inch |
14.01014 N/mm |
|
85 pound/inch |
14.88578 N/mm |
|
90 pound/inch |
15.76141 N/mm |
|
95 pound/inch |
16.63704 N/mm |
|
100 pound/inch |
17.51268 N/mm |
|
105 pound/inch |
18.38831 N/mm |
|
110 pound/inch |
19.26395 N/mm |
|
115 pound/inch |
20.13958 N/mm |
|
120 pound/inch |
21.01522 N/mm |
|
125 pound/inch |
21.89085 N/mm |
|
130 pound/inch |
22.76648 N/mm |
|
135 pound/inch |
23.64212 N/mm |
|
140 pound/inch |
24.51775 N/mm |
|
145 pound/inch |
25.39339 N/mm |
|
150 pound/inch |
26.26902 N/mm |
|
155 pound/inch |
27.14465 N/mm |
|
160 pound/inch |
28.02029 N/mm |
|
165 pound/inch |
28.89592 N/mm |
|
170 pound/inch |
29.77156 N/mm |
|
175 pound/inch |
30.64719 N/mm |
|
180 pound/inch |
31.52283 N/mm |
|
185 pound/inch |
32.39846 N/mm |
|
190 pound/inch |
33.27409 N/mm |
|
195 pound/inch |
34.14973 N/mm |
|
200 pound/inch |
35.02536 N/mm |