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How to Use Step Drills

One thing Kevin loves about his job is that he's always learning something. He's always finding out about some new tool or process, a different or better way to do things. Step drills might be one of those things.

Kevin shows his old drill bit case, which holds 29 different sizes of drill bits. Then he shows a small metal case with 5 step drills in it that provide 50 different sizes! They're made of high speed steel with a carbide coating. You can find them at

He shows the 1/4 to 3/4" diameter in 10 different steps. Kevin likes that the shanks have flat spots that keep them from spinning in the chuck. It helps lock them up and prevents grrring the shank.

The steps on the drill are only 1/8" tall. That means they're great for drilling 1/8" thickness and less, but if you're cutting, say, a piece of 1/4" plate, you're going to have a step in the hole. It's not going to drill a hole cleanly all the way through.

Kevin drills some holes. He counts to know which size he's drilling as he works through the steps.

One cool thing he just noticed is that, when he's drilling holes all the way through, the edges are clean and straight when you don't go down into the next step. But if you go down into the next step a bit, you get a nice little beveled edge on the hole to kind of finish it off.

Kevin thinks these will be handy. You can get your most common sizes like 1/4 to 3/4 of an inch, and then you don't have to keep changing bits. He wants to play with them some more, perhaps try them in his cordless drill instead of his drill press to see how they do.

He's going to go back to work, so it's a great time for you to subscribe to see more how-to videos.

Well, you might want to stick around for another moment to see Kevin try to keep things right side up ....

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