Proto J72149M 18 Pc Deep Impact Socket Set 1/2 in Drive

Product Description

The PROTO J72149M is an 18-piece metric deep impact socket set built for professional trade use in HVAC, mechanical, and general industrial applications. The set covers 1/2 inch drive sockets ranging from 10 mm to 27 mm in a 6-point configuration, which reduces the risk of rounding fastener heads under high-torque conditions. Each socket is manufactured from steel for durability under repeated impact tool use. The full set ships on a clip rail, keeping sockets organized and accounted for on the job site. Weighing 12.02 pounds, the kit is substantial but manageable for tool bag or service van storage.

This socket set is suited for residential and commercial service work where metric fasteners are common, including equipment installation, compressor replacement, pipe flange work, and panel mounting. The deep-profile design allows full engagement on longer bolt shanks and studs that shallow sockets cannot reach. Technicians working on metric-fastened HVAC equipment, pumps, and mechanical systems will find the 10 mm through 27 mm range covers the majority of standard metric fastener sizes encountered in the field.

Key Features

• 18 sockets covering 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, and 27 mm
• 1/2 inch drive compatible with standard impact wrenches and ratchets
• 6-point socket geometry for reduced fastener rounding under impact loads
• Deep-profile design for full engagement on studs and extended bolts
• Steel construction rated for use with impact drivers
• Clip rail storage keeps the set organized and complete on the job

Compatibility

Designed for use with standard 1/2 inch drive impact wrenches, ratchets, and breaker bars accepting metric sockets.

Installation Notes

This set is intended for use by qualified trade professionals including HVAC technicians, plumbers, and mechanical contractors. Always match the socket size precisely to the fastener before applying torque to avoid rounding. When using with an impact wrench, confirm the sockets are rated for impact use before operation. Inspect each socket for cracks or deformation before use and replace any damaged socket immediately.