Proto J78417MP Impact Socket 3/8 in Drive 17mm 6-pt

Product Description

The PROTO J78417MP is a 17mm, 6-point impact socket designed for 3/8 inch drive impact wrenches and ratchets. Built from alloy steel, it delivers the torsional strength needed to handle high-torque fastener work without cracking or rounding. The socket measures 2-11/16 inches overall length and features a hex drive style for positive engagement under load. This socket meets ASME B107.2 standards, making it a reliable choice for automotive, mechanical, and industrial applications where impact-rated tooling is required. It is installed and used by mechanics, fleet technicians, and general maintenance professionals working with impact drivers or air tools.

The J78417MP fits standard 3/8 inch drive impact tools and is suited for automotive wheel, suspension, and drivetrain work, as well as general equipment assembly and maintenance. Its 6-point design reduces the risk of fastener rounding compared to 12-point configurations, which is especially important when breaking loose corroded or over-torqued fasteners. The universal style and alloy steel construction make it appropriate for both shop and field use across residential, commercial, and light industrial settings.

Key Features

• 17mm socket size with 3/8 inch square drive for broad tool compatibility
• 6-point hex drive geometry reduces fastener rounding under high torque
• Alloy steel construction rated for impact tool use
• Meets ASME B107.2 specification for impact sockets
• 2-11/16 inch overall length provides reach without excessive bulk
• Universal style suitable for a wide range of fastener applications

Compatibility

Designed for use with 3/8 inch drive impact wrenches, air ratchets, and hand ratchets requiring a standard 17mm metric impact socket.

Installation Notes

This socket is intended for use by mechanics and technicians with impact-rated drive tools. Always confirm the socket is fully seated on the drive anvil before applying torque. Do not use impact sockets on non-impact hand tools beyond rated torque limits. Inspect the socket for cracks or deformation before each use and remove from service if damage is found.