Proto J72220 Impact Socket Set 20pc 3/8 in Drive

Product Description

The PROTO J72220 is a 20-piece impact and standard socket set built for trade professionals who need a reliable, dual-purpose drive set on the job. The set runs a 3/8 inch drive and covers a socket range from 1/4 inch to 3/4 inch, with each socket featuring a 6-point design for solid engagement and reduced fastener rounding. Sockets are finished in chrome and constructed from steel. At 2.55 pounds, the set is compact enough for a tool bag while covering the most common fastener sizes encountered in HVAC, plumbing, electrical, and mechanical service work.

This socket set is suited for residential and commercial service applications where both impact and standard drive use is required. The 6-point geometry makes it well-suited for working on hex fasteners in tight equipment panels, condensing units, air handlers, and similar trade equipment. The inch sizing range of 1/4 to 3/4 inch covers the majority of fastener sizes found in common trade installations and equipment service scenarios.

Key Features

• 20-piece set with 3/8 inch drive covering 1/4 to 3/4 inch range
• 6-point socket design for secure fastener engagement and reduced rounding
• Rated for both impact and standard drive use
• Steel construction with chrome finish coating
• Includes both inch and metric sizing coverage (7 mm to 17 mm)
• Lifetime warranty

Compatibility

Designed as a general-purpose impact and standard socket set compatible with 3/8 inch drive impact wrenches, ratchets, and extensions from common tool manufacturers.

Installation Notes

This set is intended for use by licensed tradespeople and experienced mechanics working on mechanical fasteners across HVAC, plumbing, and electrical equipment. Always confirm the fastener size and drive compatibility before applying impact torque to avoid fastener or equipment damage. Do not use standard-rated sockets under sustained heavy impact where impact-rated sockets are required by the application. Store sockets in the provided case or on a rail to prevent loss and maintain organization on the job site.