Williams JHW1242TSB 12-point Box End Wrench 1 5/16 Inch

Product Description

The WILLIAMS COMFORT PRODUCTS JHW1242TSB is a 12-point straight box end wrench with a 1 5/16-inch opening, built for trade professionals who need reliable access to fasteners in tight clearance situations. The wrench features a tubular shaft design that can be used with or without an optional handle, giving technicians two modes of operation: rapid nut run-down without the handle, and full turning power with the handle attached. A detent on the wrench shaft aligns the locking button with the handle hole for quick, secure assembly. The head is straight for maximum reach in confined spaces.

This wrench is suited for HVAC service, plumbing rough-in, industrial maintenance, and general mechanical work where standard wrenches cannot fit. The tubular design lets a technician spin down a fastener quickly before applying torque, reducing installation time on multi-fastener assemblies. Both SAE and corresponding metric fastener sizes are marked on the wrench, so technicians can verify fitment without reaching for a reference chart. It is sold individually and is appropriate for residential and light commercial service applications.

Key Features

• 12-point box end accepts both SAE and metric fastener markings for quick size verification
• Tubular shaft design allows use with or without optional handles
• Straight head profile provides access in limited-clearance fastener locations
• Shaft detent aligns locking button with handle hole for fast, secure handle attachment
• Handle attachment delivers maximum turning power for final tightening
• Sold individually as a single unit

Compatibility

Designed as a standard 12-point straight box end wrench for 1 5/16-inch fasteners; compatible with optional Williams tubular wrench handles sold separately.

Installation Notes

This wrench is used by HVAC technicians, plumbers, and mechanical tradespeople for fastener installation and removal. Ensure the correct socket point engagement before applying torque to avoid rounding fastener heads. When working near energized equipment or pressurized lines, de-energize and depressurize the system before using any hand tool in the service area. Follow applicable safety codes for the trade discipline in which the wrench is being used.

Technical Specifications

• Opening Size: 1 5/16 inches
• Point Count: 12-point
• Head Style: Straight
• Length: 13.5 inches
• Width: 0.8 inches
• Height: 1.8 inches
• Weight: 2.011 pounds
• Unit of Measure: Each
• UPC: 662459900319

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHW1242TSB