Williams Comfort Products JHW8819W Box End Wrench 12-point

Product Description

The WILLIAMS COMFORT PRODUCTS JHW8819W is a 12-point offset striking face box end wrench engineered for heavy industrial use. It features a 3 7/8 inch opening and an overall length of 18 9/32 inches, making it well-suited for reaching large fasteners in confined or hard-to-access locations. The wrench is designed to be struck with a hammer on its proportional anvil area, allowing technicians to break loose frozen fasteners or drive tight ones without risking damage to the tool. Special heat treating throughout the construction delivers the durability needed to withstand repeated hammer strikes in demanding shop and field environments.

This wrench is intended for industrial maintenance, heavy equipment service, and mechanical applications where standard hand tools cannot generate enough torque to free seized hardware. The offset handle sits close to the head to maximize clearance in tight spaces. It is particularly well-suited for millwrights, pipefitters, heavy equipment mechanics, and industrial maintenance technicians working on large-diameter fasteners in manufacturing, mining, oil and gas, and infrastructure settings.

Key Features

• 12-point box end design engages fastener flats from multiple positions for flexible placement
• Anvil area is proportional to the opening size for balanced, safe hammer strikes
• Special heat treating provides maximum durability under repeated striking loads
• Offset handle positions head close to the work surface for clearance in confined areas
• 3 7/8 inch opening accommodates large-diameter industrial fasteners
• Engineered to hold up under rigorous industrial use conditions

Compatibility

Designed as an OEM-style replacement or direct addition to industrial striking face wrench sets requiring a 12-point box end with a 3 7/8 inch opening.

Installation Notes

Use only a dead-blow or ball-peen hammer on the designated anvil striking face — never strike the handle or box end body. Ensure fastener and wrench are properly seated before striking to avoid slippage. Always wear appropriate PPE, including eye protection, when using striking face wrenches. Follow applicable workplace safety and tool-use standards for industrial environments.

Technical Specifications

• Point Count: 12-point
• Opening Size: 3 7/8 inches
• Overall Length (OAL): 18 9/32 inches
• Weight: 27.337 pounds
• Unit of Measure: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHW8819W