Milwaukee Tool 48-22-9550 Spark Plug Socket 9/16 in

Product Description

The MILWAUKEE TOOL 48-22-9550 is a 9/16 inch spark plug socket designed for removing and installing spark plugs in automotive and small-engine applications. Built on a 3/8 inch drive with a 6-point hex configuration, it delivers solid torque transfer without rounding fasteners. The socket measures 2.68 inches in overall length, fitting the standard depth profile needed for most spark plug wells. Constructed from steel with a stainless steel finish, it resists corrosion and handles repeated use in shop environments. This is a non-insulated, standard-length socket suited for professional technicians and skilled DIYers working on ignition service.

This socket is used in automotive repair, small-engine maintenance, and equipment service wherever 9/16 inch spark plugs are encountered. The 3/8 inch drive pairs with common ratchets, extensions, and torque wrenches found in most service bays. The 6-point contact geometry reduces the risk of slippage during removal of stubborn or corroded plugs. It is a practical single-piece addition to a socket set for technicians performing routine tune-ups or engine rebuilds.

Key Features

• 9/16 inch socket size for standard spark plug service
• 3/8 inch drive hex interface compatible with common ratchets and extensions
• 6-point contact reduces fastener rounding on stubborn plugs
• Standard length at 2.68 inches for typical spark plug well depth
• Steel construction with stainless steel finish for corrosion resistance
• Lifetime warranty coverage from MILWAUKEE TOOL

Compatibility

Designed as an OEM-style replacement and service socket for use with 3/8 inch drive ratchets and torque wrenches in automotive and small-engine spark plug applications requiring a 9/16 inch socket.

Installation Notes

Spark plug service should be performed by a qualified automotive or small-engine technician following the engine manufacturer's service procedures. Disconnect the ignition system and allow the engine to cool completely before removing spark plugs. Use a torque wrench on reinstallation to avoid over-tightening, which can damage cylinder head threads. This socket is not rated for insulated electrical work and should not be used near energized components.