American Forge & Foundry 40170 Torque Limiting Extension, 1/2-inch Drive, 170 ft-lbs, Apple Green
- The American Forge & Foundry 40170 torque limiting extension is made to prevent overtightening of wheel lug nuts. It stops rotating once the built-in 170 ft-lbs torque limit is reached, protecting wheels, studs, and brake rotors. Primary keyword: torque limiting extension.
- Features:
- Preset 170 ft-lbs torque limit - ensures consistent tightness without risk of overtightening.
- Color-coded apple green finish with roll-stamped marking - quick identification in busy shops.
- Heavy-duty chrome molybdenum spring steel construction - durable material resists wear from impact tools.
- Powder-coat finish - resists scratching, corrosion, and fading under heavy use.
- Ball-detent socket retention - keeps sockets securely in place during operation.
- Specifications:
- Manufacturer: American Forge & Foundry
- Part Number: 40170
- Drive Size: 1/2-inch
- Torque Rating: 170 ft-lbs
- Color: Apple Green
- Material: Chrome molybdenum spring steel
- Finish: Powder-coated
- Retention Style: Ball detent
- Style: Preset torque limiting extension; input and output drive both 1/2-inch
- The torque limiting extension can also be referred to as AFF 40170 torque stick, 170 ft-lbs limit extension, Apple Green torque limiter extension, 1/2-inch drive torque extension, AFF wheel lug torque tool.
American Forge & Foundry 40170 torque limiting extension offers precise torque control in wheel service with a preset stop at 170 ft-lbs, durable design, and easy socket retention.
Q: Can this extension be used with any impact wrench?
A: Use only with 1/2-inch drive impact wrenches compatible with U.S. wheel lug standard. This tool is designed for 1/2-inch connections.
Q: Does the extension need calibration or maintenance?
A: No calibration required. The torque rating is preset and the unit is maintenance-free under normal use.
Q: What happens when the extension reaches its torque limit?
A: Once the internal mechanism reaches 170 ft-lbs of torque, the extension stops transferring additional torque to the fastener, preventing further tightening.
