

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 49-66-6609 is a 1-inch drive, 54mm, 6-point hex impact socket designed for heavy-duty fastening applications in industrial and mechanical trades. Built from steel with a black phosphate finish, this standard-length socket resists corrosion and reduces glare in the field. The non-sparking construction makes it suitable for use in environments where ignition risk is a concern. At 5.53 pounds, it is a solid, robust tool built to handle the high-torque output of 1-inch drive impact wrenches without deforming or cracking under load.
This socket is intended for use with 1-inch drive impact wrenches in heavy equipment, truck fleet, industrial maintenance, and large structural assembly applications. The 54mm hex drive size is commonly encountered on large fasteners found in construction equipment, heavy trucks, and industrial machinery. Mechanics, millwrights, and heavy equipment technicians are the primary users. Its standard length profile fits most impact wrench heads and torque multipliers without requiring an extension in typical service scenarios.
Designed as an OEM-style replacement and standard accessory for 1-inch drive impact wrenches and torque multipliers used in heavy-duty industrial and fleet maintenance applications.
Installation and use of this socket should be performed by qualified mechanics or tradespeople familiar with 1-inch drive impact tools and high-torque fastening procedures. Always verify the socket is fully seated on the drive anvil before applying torque. Do not use impact sockets with hand ratchets, as the metallurgy is not designed for that application. Inspect the socket for cracks or wear before each use and replace if damage is found.
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!