Proto J52112S 3/8 Drive Sae 6-point Socket Set 12 Pc

Product Description

The PROTO J52112S is a 12-piece, 3/8-inch drive SAE socket set designed for professional use in mechanical, HVAC, plumbing, and electrical service work. The set covers sizes from 3/8 inch to 7/8 inch and features a 6-point design that grips fastener flats rather than corners, reducing the risk of rounding off hex hardware. At 3.3 pounds, it is a compact set suited for field technicians and shop mechanics who need a reliable SAE socket assortment on a 3/8-inch drive ratchet.

This socket set is appropriate for residential and commercial service work where SAE fasteners are common, including equipment installations, panel work, and mechanical assemblies. Sizes included are 3/8 inch, 7/16 inch, 1/2 inch, 9/16 inch, 5/8 inch, 11/16 inch, 3/4 inch, 13/16 inch, and 7/8 inch. The 3/8-inch drive platform is a standard choice for mid-range fastener work, balancing torque capacity with access in tight spaces.

Key Features

• 6-point socket geometry reduces fastener rounding under load
• 3/8-inch drive fits standard ratchets, extensions, and breaker bars
• SAE sizing from 3/8 inch to 7/8 inch covers common hardware in trade applications
• 12-piece set provides a complete range without gaps in the SAE fractional sequence
• Compact set weight of 3.3 pounds makes it practical for tool bags and service vans

Compatibility

Designed for use with any standard 3/8-inch drive ratchet, extension, torque wrench, or impact adapter. Fits SAE hex fasteners from 3/8 inch to 7/8 inch.

Installation Notes

Always power down or de-energize equipment before using hand tools on fasteners in electrical or HVAC panels. Inspect sockets for cracks or wear before each use and replace damaged sockets immediately. Use appropriate torque specifications as specified by the equipment manufacturer — this set does not substitute for a calibrated torque wrench where torque values are required by code or service procedure.