Williams Comfort Products 21SPW Torque Screwdriver 6-32 In-oz

Product Description

The WILLIAMS COMFORT PRODUCTS 21SPW is a pre-set CDI cam-over torque screwdriver designed for precise fastener control in assembly, service, and calibration work. It features a 1/4 inch hex bit holder with a strong rare earth magnet for secure bit retention and a cam-over torque limiting clutch that disengages automatically at the set torque value, preventing overtorque. Accuracy is rated at plus or minus 6 percent of indicated value in the clockwise direction from 20 percent to 100 percent of full scale. The driver is individually serialized and ships with a matching certificate of calibration traceable to N.I.S.T., making it suitable for applications where documentation is required.

This torque screwdriver is used in light assembly, electronics, HVAC controls, and precision service applications where consistent, repeatable fastening torque is critical. The trilobular comfort grip reduces hand fatigue during extended use, and the slip resistant finish improves control in field and shop environments. The automatic lock in the counterclockwise direction allows the same tool to be used for removal as well as installation. Technicians working on torque-sensitive components such as control boards, terminal blocks, and enclosure hardware will find this driver appropriate for that work.

Key Features

• Cam-over torque limiting clutch for repeatable, accurate torque application at the set value
• Pre-set torque range of 6-32 inch-ounces with easy-to-read window scale and positive locking pull-down adjustment knob
• Universal 1/4 inch hex bit holder with rare earth magnet for secure bit retention
• Automatic lock in counterclockwise direction for screw removal without switching tools
• Accuracy rated at plus or minus 6 percent of indicated value, clockwise, from 20 percent to 100 percent of full scale
• Individually serialized with N.I.S.T.-traceable certificate of calibration included

Compatibility

Designed for use with standard 1/4 inch hex drive screwdriver bits. Compatible across assembly and service applications requiring controlled torque in the 6-32 inch-ounce range.

Installation Notes

This tool is intended for use by technicians performing torque-sensitive fastener work on control components, electrical enclosures, and precision assemblies. Verify the torque setting before use by confirming the adjustment knob is fully locked at the desired value. Use only with 1/4 inch hex bits rated for the application. Do not use the cam-over clutch as a substitute for a proper ratchet or impact driver in high-torque applications.

Technical Specifications

• Torque Range: 6-32 inch-ounces
• Bit Holder: 1/4 inch hex universal with rare earth magnet
• Accuracy: Plus or minus 6 percent of indicated value, CW, from 20 percent to 100 percent of full scale
• Adjustment: Positive locking pull-down knob with window scale
• Calibration: Individually serialized, N.I.S.T.-traceable certificate included
• Standards Compliance: Meets or exceeds ASME B107.300-2010 and ISO 678
• Weight: 0.463 pounds
• Unit of Measure: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: 21SPW