Proto J4708SPL Spline Socket 1/4 in Drive 8 Spline 12 Point

Product Description

The PROTO J4708SPL is a spline socket designed for 1/4 inch drive ratchets and extensions. It accepts 8 spline fasteners with a 1/4 inch hex size and features a 12-point contact geometry for positive engagement on spline-head fasteners. Built for professional hand tool use, this socket is a compact option suited for tight-access applications where standard hex or six-point sockets cannot engage the fastener type. Weighing 0.02 pounds, it is a lightweight but purpose-specific tool for technicians working on equipment with spline-drive hardware.

This socket fits into HVAC, automotive, and general mechanical service work where 8 spline fasteners are encountered. The 1/4 inch drive size makes it compatible with 1/4 inch drive ratchets, extensions, and flex heads commonly used for instrument panel, blower assembly, and access panel fasteners. It is appropriate for residential and light commercial service calls where spline fasteners appear on equipment covers, motor mounts, and similar hardware.

Key Features

• 1/4 inch drive compatible with standard 1/4 inch drive ratchets and extensions
• 8 spline fastener engagement for spline-head hardware
• 1/4 inch hex size for precise fastener fit
• 12-point contact geometry for positive socket-to-fastener engagement
• Lightweight at 0.02 pounds for reduced hand fatigue in repetitive fastening tasks

Compatibility

Designed for use with standard 1/4 inch drive ratchets, extensions, and accessories. Engages 8 spline fasteners with a 1/4 inch hex size. Consult fastener specifications before use to confirm spline count and hex size match.

Installation Notes

Installation is performed by hand tool technicians and trade professionals across HVAC, plumbing, and electrical service work. Power down or de-energize equipment before loosening or tightening any fasteners on live assemblies. Verify the spline count and hex size of the target fastener before applying torque to avoid fastener damage. Use with a calibrated torque wrench where fastener torque specifications are required by the equipment manufacturer.