Medium
15-30 minutes
This Chuck Key Holder securely attaches chuck key 48-66-3200 to the cordset of your drill which has chuck 48-66-0070, 48-66-0104 or 48-66-0230 on it.
Key Holder 48-66-4080
OEM part for: Milwaukee
Part Number: 48-66-4080
$9.36
In Stock
Ships within 1 business day 
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Compatibility
This Key Holder will fit the following 166 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Milwaukee
Show More Compatible ModelsThis item works with the following types of products:
- Saw Parts
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Customer Repair Instructions ?
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Replace cord and lost chuck key
Anne - November 13, 2015
Tool Type
Electric Drill
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, soldering iron & solder, wire stripper
For my 40 year old Milwaukee drill, I bought the parts I used and downloaded bulletin 58-01-0645 for the wiring diagram which allowed me to verify that the old cord was wired correctly. I stripped and tinned the new leads to match the old ones. The switch assembly has a push in connector that must be released by pushing in a piece of stiff wire or a jewelers screwdriver next to the old wire to release the old wire. Do not try to pull out the old wire without releasing since the switch is no longer available and you will be stuck with parts you don\'t need when you buy your new drill. The wire leads don\'t like to stay where they belong, so it may take several tries to get the handle with its 6 screws back together. If you have to force things, take it apart again and rearrange the leads.
I am 71 years old and I have been using a soldering iron since I was 7, so this was an easy fix for me. There aren't very many parts still available for these old drills, so open up the drill and investigate before you order. The old chuck key disappeared after the original key holder broke. Since I inherited the drill from my dad, it has sentimental value. It was also difficult to use without a proper key which made the drill low mileage although it was 40 years old. The switch has a broken pivot on the reversing lever which made the repair questionable. It works! I don't lend it out for that and other reasons.
I am 71 years old and I have been using a soldering iron since I was 7, so this was an easy fix for me. There aren't very many parts still available for these old drills, so open up the drill and investigate before you order. The old chuck key disappeared after the original key holder broke. Since I inherited the drill from my dad, it has sentimental value. It was also difficult to use without a proper key which made the drill low mileage although it was 40 years old. The switch has a broken pivot on the reversing lever which made the repair questionable. It works! I don't lend it out for that and other reasons.
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All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
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