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The Jacobs Chuck JCM3655P20 Thumb Handle Chuck Key is a reliable tool for tightening and loosening drill chucks. Designed by Apex Tool Group, this chuck key features a K4 key size and is compatible with 3/8 inch chucks. It is commonly used with drill models 16, 18N, and 36.
This Jacobs Chuck thumb handle chuck key ensures secure and efficient operation with drill chucks. The soft steel handles and precision crafting provide durability and reliability for professional applications.
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.
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