Proto j52123 Stubby Socket Set 3/8 in Drive 10 Pc Sae

Product Description

The PROTO j52123 is a 10-piece stubby socket set designed for working in tight, low-clearance spaces where a standard-length socket cannot fit. Built on a 3/8 inch drive, the set includes 6-point SAE sockets ranging from 3/16 inch to 3/4 inch. The 6-point geometry delivers full-face contact on fastener flats, reducing rounding on worn or corroded hardware. This set is suited for mechanics, millwrights, and maintenance technicians who need reliable fastener engagement in confined areas.

Stubby socket sets like the j52123 are commonly used in automotive, HVAC equipment, and light industrial maintenance where fastener heads sit close to panels, brackets, or structural framing. The compact profile of stubby sockets gives the technician clearance to seat and drive fasteners that a standard socket would not reach. This set covers a continuous range of SAE inch sizes, making it practical for a wide variety of common fastener applications across trade and service work.

Key Features

• 3/8 inch drive compatible with standard 3/8 inch ratchets, extensions, and torque wrenches
• 6-point socket design reduces fastener rounding on flats
• SAE size range from 3/16 inch to 3/4 inch covers common inch-standard fasteners
• Stubby profile suited for low-clearance and confined-space applications
• 10-piece set provides continuous size coverage for typical trade use

Compatibility

Designed for use with standard 3/8 inch drive ratchets, breaker bars, extensions, and torque wrenches accepting 3/8 inch drive square-drive accessories.

Installation Notes

Always verify the fastener size before applying torque to avoid rounding. When working in confined spaces near electrical panels or energized components, confirm power is isolated before service in accordance with applicable lockout/tagout procedures. Use a calibrated torque wrench when fastener specifications require a defined clamp load. Inspect sockets for cracks or wear before each use and remove any damaged sockets from service.

Technical Specifications

• Drive Size: 3/8 inch
• Point Style: 6-Point
• Measurement System: SAE
• Size Range: 3/16 inch to 3/4 inch
• Piece Count: 10

Standard Information

• Brand: PROTO
• Manufacturer Part Number: j52123