Milwaukee 48-22-9212 Lineman’s 4 in 1 Insulated Ratcheting Box Wrench

The Milwaukee 48-22-9212 is a lineman’s 4-in-1 insulated ratcheting box wrench, 1000-volt UL classified for work around energized equipment. Two separate forged-steel heads cover 1/2″, 9/16″, 5/8″, and 3/4″ twelve-point sockets, with glove-friendly directional switches, high-contrast size markings, and a tether-ready lanyard hole — purpose-built for electrical linemen and utility crews.

Features

• 1000-Volt UL classified insulation for work near energized equipment
• 4-in-1: 1/2″, 9/16″, 5/8″, and 3/4″ 12-point sockets
• Two separate metal heads with durable forged steel construction
• Large directional switches operable with gloves
• High-contrast size markings for fast identification
• Ergonomic handle for comfortable extended use
• Lanyard hole for tethering at height

What’s in The Box

• Milwaukee Lineman’s 4 in 1 Insulated Ratcheting Box Wrench – 48-22-9212
• Owner’s Manual

Warranty

• Limited Factory Warranty
• 30 Day Satisfaction Guaranteed

Specifications

Frequently Asked Questions

Is the Milwaukee 48-22-9212 rated for live electrical work?
It is 1000-Volt UL classified, designed for use around energized equipment. Always follow your employer’s safety procedures and applicable standards for energized work.

What sizes does this insulated wrench cover?
Four SAE sizes in one tool: 1/2″, 9/16″, 5/8″, and 3/4″ twelve-point sockets across two ratcheting heads.

Can it be tethered for work at height?
Yes — the lanyard hole makes it tether-ready for pole and bucket-truck work.

How is this different from the 48-22-9216 lineman’s wrench?
The 9212 is 1000V insulated with four 12-point box sockets for electrical work; the 9216 is a non-insulated 5-in-1 with square sockets and a built-in hammer for pole hardware.