Proto J6020AB 3/4 in Drive 120-600 ft-lb Micrometer Torque Wrench
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The Proto J6020AB is a new, click-type micrometer torque wrench with a 3/4 in square drive, designed for high-torque fastening applications in heavy equipment maintenance, industrial assembly, and commercial vehicle service. The wrench operates over a range of 120 to 600 ft-lb (163 to 813 N·m), set via a knurled micrometer-style handle with a graduated scale, and delivers an audible and tactile click signal at the preset torque value to prevent overtightening. Manufactured in the USA, the J6020AB ships in a Proto red molded storage case (visible in photos) with documentation, and is calibrated to meet ASME B107.300 accuracy standards of ±4% clockwise. The long handle provides the mechanical advantage required to reach high torque values on large fasteners such as truck wheel lug nuts, flange bolts, and structural fasteners. Compatible with standard 3/4 in drive impact and hand sockets.
Product Specifications
| Brand | Proto |
| MPN | J6020AB |
| Drive Size | 3/4 in |
| Torque Range | 120 to 600 ft-lb |
| Torque Range (N·m) | 163 to 813 N·m |
| Torque Wrench Type | Click / Micrometer |
| Accuracy | ±4% clockwise |
| Scale Graduation | 2 ft-lb |
| Drive Type | Ratchet head |
| Country of Origin | USA |
| Includes | Molded storage case |
| Condition | New |
| Standard | ASME B107.300 |