Proto J52119AS Socket Set 19 Pc 3/8 Drive Sae 12 Point

Product Description

The PROTO J52119AS is a 19-piece socket set built for professional tradespeople who need a reliable, complete SAE socket assortment on a single 3/8-inch drive. The set covers a range from 9/32 inch up to 1 inch and features 12-point geometry on every socket, giving technicians solid engagement on fasteners in tight quarters. Whether turning hex head bolts or tackling stubborn nuts in confined spaces, the 12-point design provides multiple engagement positions and reduces the chance of rounding. At 4.65 pounds, the full set is dense enough to stay put in a toolbox drawer without being cumbersome on a job cart.

This socket set is suited for HVAC technicians, plumbers, electricians, and general mechanical tradespeople who work with SAE-standard fasteners in residential and light commercial applications. The 3/8-inch drive size is a common choice for mid-torque work, fitting standard ratchets, extensions, and breaker bars found in most service vans. The 19-piece assortment covers the most frequently encountered bolt and nut sizes on equipment panels, access covers, electrical enclosures, and mechanical assemblies.

Key Features

• 19-piece SAE socket assortment in a single set
• 3/8-inch drive fits standard ratchets, extensions, and breaker bars
• 12-point socket geometry for multiple fastener engagement positions
• Size range from 9/32 inch to 1 inch covers the most common SAE fastener sizes
• Set weight of 4.65 pounds indicates solid, full-coverage construction

Compatibility

Designed for use with standard 3/8-inch drive ratchets, extensions, and torque wrenches. Compatible with SAE fastener applications across HVAC, plumbing, electrical, and general mechanical service work.

Installation Notes

Always verify the socket size matches the fastener before applying torque to avoid rounding. Ensure the socket is fully seated on the drive before use. When working near energized components or pressurized systems, follow applicable codes and power down or isolate the system before breaking fasteners. Inspect sockets for cracks or wear before each use and remove any damaged pieces from service immediately.