Williams Comfort Products 401SP-SET Cdi Torque Set

Product Description

The WILLIAMS COMFORT PRODUCTS 401SP-SET is a CDI torque screwdriver set built around a 1/4-inch female hex drive with a torque range of 4 to 40 inch-pounds. This set is designed for precise fastener torque application in trade environments where over-tightening or under-tightening can cause equipment failure or voided warranties. The 1/4-inch female hex drive accepts standard hex bits, making it compatible with a wide range of fastener heads encountered in HVAC, electrical, and plumbing panel work. Licensed technicians and journeymen rely on calibrated torque tools to meet manufacturer torque specs during equipment installation and service.

This torque set is suited for residential and light commercial service work where controlled torque is required on small fasteners. Common applications include terminal block connections, control board mounting screws, access panel hardware, and other fastener points that carry published torque requirements. The 4 to 40 inch-pound range covers the lower end of torque specifications, making it appropriate for sensitive electronic enclosures and precision assemblies found in HVAC units, electrical panels, and mechanical equipment rooms.

Key Features

• 1/4-inch female hex drive accepts standard hex bit inserts
• Torque range of 4 to 40 inch-pounds for low-torque fastener applications
• CDI-Set configuration provides a matched, calibrated tool set
• Designed for repeatable, accurate torque delivery on small fasteners
• Sold as a complete set — unit of measure is Each

Compatibility

Designed for general trade use with any fastener application requiring a 1/4-inch female hex drive within the 4 to 40 inch-pound torque range.

Installation Notes

This tool is intended for use by qualified trade professionals including licensed HVAC technicians, electricians, and plumbers. Always power down and de-energize equipment before servicing fasteners on or near electrical components. Follow all applicable NEC or equipment manufacturer guidelines when applying torque to terminal hardware or panel fasteners. Do not exceed the rated torque range of the tool.

Technical Specifications

• Drive Size: 1/4 inch female hex
• Torque Range: 4-40 inch-pounds
• Weight: 4.03 pounds
• UPC: 662459933027
• Unit of Measure: Each
• Minimum Order Quantity: 1

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: 401SP-SET