If you ever need to cut matching slots (or dadoes) in a number of pieces, here is an easy way to do it with a circular saw.
If your bit slips a lot in your drill, you might be able to get by with replacing the chuck rather than the entire drill. You’ll find replacement chucks in home centers for $25-$35 that outperform the standard chuck on a “consumer” drill.
These replacement chucks are easier to tighten thanks to easy-to-grip surfaces. And some have a ratcheting mechanism to hold the bit tightly.
Or for a few dollars more, upgrade to the single-sleeve style chuck used on high-end drills. These can be tightened with one hand, and offer carbide jaws that are serrated for extra gripping power. You’ll probably have to go to a tool repair shop or your drill manufacturer to find one.
Before buying a new chuck, you need to remove the old one. This lets you check the diameter of the mounting shaft, so you can select the correct replacement.
To remove the chuck, open up the jaws and remove the retaining screw that’s inside (Drawing, below). Next, unscrew the chuck as shown in the Photo below right.
After removing the retaining screw (above, left), put the drill in low range, and then tighten a large hex wrench into the chuck. Strike the wrench hard to break the chuck free.
Have a nice weekend,