Whether corded or cordless, a drill or two is often part of the tool arsenal for trade professionals, nearly every homeowner, and DIYers. It's not uncommon for a drill to get a lot of use—and abuse—and the drill's chuck is subjected to plenty of it. But don’t let a worn or broken drill chuck make you “chuck” your drill if it’s still in good shape! The following information provides steps for you to consider when selecting a replacement drill chuck, as well as how to remove and replace your old drill chuck.
Selecting a Replacement Drill Chuck
To select a replacement drill chuck, determine if you'll need a keyed or keyless one. With greater gripping power and convenient use (no key to find or lose), keyless chucks are becoming standard for most drills, especially cordless ones.
If you're installing a keyless replacement drill chuck, determine if a single- or double-sleeve chuck is needed. If you're switching from a keyed to keyless chuck, or currently have a double-sleeve keyless chuck, the replacement needs to be a double-sleeve keyless chuck as well. Likewise, if the current chuck is a single-sleeve chuck, you will want to stick with a single sleeve replacement.
The final step is to confirm the thread size of the drill spindle to ensure the new chuck is compatible. Typically ⅜" capacity chucks are ⅜" x 24 TPI, and ½" chucks are ½" x 20 TPI. However, there are exceptions where this is the opposite, or an entirely different thread may be present, so it’s always best to double check.
Chuck Removal
Before getting started, ensure the drill is unplugged or the battery is removed.
- First, fully open the chuck jaws and determine the type of retaining screw installed in the drill spindle (hex, Torx, Phillips, or slotted). In some cases, a retaining screw may not even be present.
- Next, using the appropriate driver, loosen and remove the retaining screw. Be sure to save the retaining screw for installation of the new chuck. Note: Screws are reverse-threaded and will turn clockwise to loosen.
- Now, using a ¼" or larger hex key/Allen wrench, tighten the short end of the wrench into the chuck jaws. Then with the drill on a flat surface and the chuck facing you, use a soft-faced hammer or mallet to sharply strike the hex key 2-3 times in a counterclockwise direction.
- Once loose, complete the chuck removal by hand and remove the hex key from the chuck.
Chuck Installation
As with the removal of the old drill chuck, ensure the drill is unplugged or the battery is removed before installing the new replacement chuck.
- First, thread the new chuck clockwise onto the drill spindle, and then tighten the hex key used in the removal process into the jaws of the new chuck.
- Next, sharply strike the hex key 2-3 times with a soft-faced hammer or mallet clockwise and remove the hex key.
- Finally, reinstall the retaining screw from the chuck removal process and tighten in a counterclockwise direction.
Now that you've replaced your drill chuck you can check out Zoro's wide assortment of drill parts along with a variety of drill bits, from masonry drill bits to step drill bits to keep your drill spinning on!
Product Compliance and Suitability
The product statements contained in this guide are intended for general informational purposes only. Such product statements do not constitute a product recommendation or representation as to the appropriateness, accuracy, completeness, correctness or currentness of the information provided. Information provided in this guide does not replace the use by you of any manufacturer instructions, technical product manual, or other professional resource or adviser available to you. Always read, understand and follow all manufacturer instructions.