Williams Comfort Products JHW12M-621 Deep Impact Socket 21MM

Product Description

The WILLIAMS COMFORT PRODUCTS JHW12M-621 is a 21 MM metric deep impact socket with a 3/8 inch drive and an overall length of 2.625 inches. Built for use with pneumatic and electric impact wrenches, this socket features lobular internal openings that increase turning power while reducing deformation of the fastener head. The socket is specially heat treated for impact service, giving it the durability and safety margin required for repeated heavy-duty use. It is sold individually and weighs 0.37 pounds.

This socket is suited for metric fastener applications in automotive, mechanical, and industrial service environments. The deep profile allows access to recessed fasteners or long bolt shanks that standard-depth sockets cannot reach. Technicians working with impact-driven tools will find the 21 MM opening and 3/8 inch drive size appropriate for a wide range of medium-duty fastening tasks in shop and field settings.

Key Features

• Lobular opening design increases torque transfer and reduces fastener rounding
• Engineered for maximum engagement on 6-point fasteners
• Compatible with pneumatic and electric impact wrenches
• Heat-treated construction for impact service durability and long service life
• Deep profile provides access to recessed or long-shank fasteners
• 3/8 inch drive fits a standard range of impact ratchets and extensions

Compatibility

Designed as an OEM-style replacement or direct fitment socket for use with 3/8 inch drive impact tools accepting metric deep sockets.

Installation Notes

This socket is intended for installation and removal of fasteners by qualified mechanics and trade professionals using compatible 3/8 inch drive impact wrenches or ratchets. Ensure the socket is fully seated on the fastener before applying torque. Do not use impact sockets with hand-ratchet-only tools rated below the torque demands of the application. Inspect the socket for cracks or wear before each use and remove from service if damage is found.

Technical Specifications

• Drive Size: 3/8 inch
• Socket Size: 21 MM
• Overall Length (OAL): 2.625 inches
• Profile: Deep
• Measurement Standard: Metric
• Width: 1.1 inches
• Height: 1.1 inches
• Weight: 0.37 pounds
• Sold As: Each
• UPC: 662459250940

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHW12M-621