STW Click Wrench
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Most externally adjustable click type wrenches must be returned to the lowest setting after use in order to minimize potential spring set, which can adversely affect reproducibility at other settings. A patent springless design of the STW wrench is not subject to potential spring set, which eliminates the need for the click wrench to be turned back to the minimum scale value after being used. Designed and manufactured to meet or exceed the accuracy and repeatability of ISO 6789:2003 (± 4% of setting). |
- Adjustable torque wrench available with square drive models and 16mm Spigot models.
- Square drive models feature a bi-directional ratchet head.
- 16mm Spigot models allows for interchangeable end fittings.
- Quick and precise slide adjustment. Easily set the desired torque by unscrewing the side knob and gliding the slider on the scale to the required value.
- The handle is crafted to provide a firm, ergonomic grip.
- Positive ‘‘click’’ can be heard and felt when torque is eached.
Torque Ranges
| Model | Item # | American | S.I. | Sq. Dr | Length in |
Length mm |
Wt. lbs. |
Wt. kg |
| STW50 | 280200 | 7 - 50 lbf.ft | 10 - 70 N.m | 1/2 Sq. Dr. | 15 | 380 | 2.2 | 1 |
| STW50-S | 280201 | 7 - 50 lbf.ft | 10 - 70 N.m | 16mm Spigot | 14 3/4 | 375 | 2.2 | 1 |
| STW75 | 280202 | 15 - 75 lbf.ft | 20 - 100 N.m | 1/2 Sq. Dr. | 17 3/4 | 450 | 2.6 | 1.2 |
| STW75-S | 280203 | 15 - 75 lbf.ft | 20 - 100 N.m | 16mm Spigot | 17 1/8 | 435 | 2.4 | 1.1 |
| STW150 | 280204 | 30 - 150 lbf.ft | 40 - 200 N.m | 1/2 Sq. Dr. | 17 3/4 | 450 | 2.6 | 1.2 |
| STW150-S | 280205 | 30 -150 lbf.ft | 40 - 200 N.m | 16mm Spigot | 17 1/8 | 435 | 2.4 | 1.1 |
| STW300 | 280206 | 50 - 300 lbf.ft | 70 - 400 N.m | 1/2 Sq. Dr. | 23 1/4 | 590 | 3.3 | 1.5 |
| STW300-S | 280207 | 50 - 300 lbf.ft | 70 - 400 N.m | 16mm Spigot | 22 1/2 | 570 | 3.1 | 1.4 |
