

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The MILWAUKEE TOOL 49-66-5154 is a 3/8 inch drive impact hex bit socket designed for use with impact drivers and impact wrenches in demanding trade applications. Built to handle the high-torque output of pneumatic and cordless impact tools, this socket accepts a 1/2 inch hex bit and measures 2.62 inches in overall length. At 0.18 pounds, it is a compact, single-piece fastening accessory suited for electricians, plumbers, HVAC technicians, and general contractors who rely on impact-rated tooling for repetitive fastener installation and removal.
This impact hex bit socket is suited for residential and light commercial work where a 3/8 inch drive impact tool is the preferred platform. Typical applications include driving hex-head fasteners on equipment panels, electrical enclosures, mechanical supports, ductwork hardware, and similar assemblies. The 1/2 inch hex size covers a range of common fastener heads encountered across HVAC, plumbing, and electrical rough-in work. It is sold as a single unit, making it a straightforward replacement or addition to an existing socket set.
Designed as an OEM-style replacement or supplemental socket for 3/8 inch drive impact wrenches and impact drivers accepting standard hex bit sockets.
Installation and use should be performed by a qualified tradesperson familiar with impact tooling. Confirm the socket is fully seated on the drive anvil before applying torque to prevent slippage or socket ejection. Do not use impact-rated sockets with manual ratchets as the only concern is improper fit; however, impact sockets are designed specifically for impact tools and perform best in that application. Inspect the socket for cracks or deformation before each use and replace if any damage is observed.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!