This is an authentic Milwaukee part, sold individually. The chuck is the top portion of the drill that holds the different drill bits. It is compatible with the hammer drills listed below. If your drill's bit retention is suffering, the rotation feels stiff, or the chuck has seized up entirely, a new chuck should fix the problem. To install the new chuck, simply thread the new chuck assembly onto the spindle and secure the chuck assembly as tightly as possible ( by hand). Open the chuck to accept the retaining screw and install the retaining screw. You will need to secure the screw with a Phillips screwdriver. The screw is reverse-threaded (requiring counterclockwise rotation to secure).
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★★★★★
★★★★★
Saved a lot of money!
I thought my Milwaukee hammer drill was history when the chuck stopped functioning. I was looking at a couple hundred bucks to replace it. I came across ereplacemenparts looking for a replacement drill and ordered a replacement chuck. It arrived two days later and it is like having a brand new tool. If you are not sure how to replace the chuck, look up Milwaukee tool chuck replacement on YouTube which will walk you through it.
Guest - April 23, 2019
Verified Purchase
★★★★★
★★★★★
good parts good prices
no problems so far with replacement parts i have purchased
Phil - August 26, 2019
Verified Purchase
★★★★★
★★★★★
Awesome Service!
The right original Milwaukee chuck and my hammer drill is back to performing like when it was new! Thank You All For Providing Quality Original replacement parts!!!
Guest - October 18, 2019
Verified Purchase
★★★★★
★★★★★
Works great easy install
Great replacement part. Exactly what I ordered. My drill is working again.
Guest - December 15, 2020
Verified Purchase
★★★★★
★★★★★
Repairs made easy
If you know the model of the equipment your trying to repair, their computers will find the right replacement parts.
Bruce - March 6, 2024
Verified Purchase
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1. Remove retaining screw, reverse thread, so it comes off the opposite way you would think
2. On a flat hard surface, close the monkey wrench on the chuck and remove as you would a normal screw.
3. Hand tighten the new chuck
4. Hand tighten the retaining screw with a screw driver.
5. Done.
I took the LH screw out that holds chuck from coming off of the shaft. I had to cut the outer ring off the chuck since it would not hold good enough to get itself to unthread off the shaft. Then used a pipe wrench to take the chuck off. Threaded on the new one and installed the screw.
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Chuck wore out after to much use and it\'s much cheaper to food than replace
Open Chuck all the way, then stick a Phillips screwdriver in and take that screw out ( it\'s reverse thread) . Once the screws out toss that beast in reverse and grab the chuck, it will work it\'s way off, if it\'s to much trouble use a vice. Once the old one is out just do the getting off steps in reverse
1. Watched video on changing chuck.
2. Open chuck fully.
3. Remove phillips reverse thread screw from inside chuck.
4. Realize that it takes a bigger than normal phillips screwdriver and get impact phillips screwdriver to free the screw. It has thread lock and doesn\'t want to come loose.
5. Tighten allen wrench i
... Read morento chuck.
6. Secure drill in vice with chuck and allen wrench facing out.
7. Position allen wrench and bang with a hammer, counterclockwise, to break free. This also has some form of thread lock.
8. Unscrew chuck.
9. Thread on new chuck until tight.
10. Screw in reverse thread screw.
11. Try it out.
I suppose you could apply a thread lock. I did not. I\'ll just retighten when needed.
Remove the LH chuck screw
Tighten the short end of an allen in the chuck
Place your drill in low speed
Hit the allen wrench with a hammer to release the chuck from the spindle
Thread the new chuck onto the spindle
Screw the LH chuck screw in
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Model Cross Reference
This part works with the following models:
ERP Number: ERP10129253
Manufacturer Part Number: 42-66-0215
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
_WW_1.gif "Part Location Diagram of 42-66-0215 Milwaukee Keyless Chuck (1/2-inch)")
_WW_1.gif "Part Location Diagram of 42-66-0215 Milwaukee Keyless Chuck (1/2-inch)")
