Milwaukee
Milwaukee Tool 3pc 3/8 Inch Drive Locking Extension Set
- SKU:
- MLW48-22-9361
- Availability:
- Usually Ships Same Day
- Weight:
- 1.09 LBS
Description

DUTY®
3/8 in Locking
Extension Set
Keep a socket attached while reaching into tight spaces with this 3/8 in drive locking set.
Product Overview
Knurled locking collars retain sockets where restricted access makes retrieval awkward.
A detent hole aids ratchet engagement. Knurling helps start and run fasteners by hand.
- Socket lockKnurled collar holds the socket.
- Ratchet engagementDetent hole improves retention.
- Finger controlKnurled gripping surfaces.
- Storage rackKeeps the set together.
Technical Specifications
- Drive size
- 3/8 in
- Socket lock
- Knurled collar
- Ratchet retention
- Detent hole
- Finish
- Chrome plated
- Grip
- Knurled surfaces
- Storage
- Compact rack
Choose the Correct Fit
Match the 3/8 in drive to the ratchet and socket. Check the available space for the complete assembly.
Engage the locking collar and test the socket retention before putting it into a recessed location.
Installation & Care
Use the shortest reach that suits the work. Start fasteners gently and stop if the thread or socket does not engage cleanly.
Remove oil and grit after use. Inspect the connection corners and moving parts, then store the accessory dry.
Small Details. Big Jobsite Energy.
Get set. Stay focused. Make your next move count.
THE NEXT JOB.
Ask Willy:
Need help reaching a fastener? Tell Willy the drive size, socket setup and available clearance.
Important Product Questions
What does the locking collar do?
It helps keep the socket on the extension while you position or withdraw the assembly. Check engagement before moving the socket into a recess.
Does the collar lock it to the ratchet?
The socket is retained by the collar. The ratchet side uses a detent hole, so check the ratchet’s retention mechanism separately.
Can I use it with an impact wrench?
Use a specifically impact-rated extension for impact applications. A locking collar does not establish an impact rating.