Products for bench top machinists | LittleMachineShop.com

Drill-Mills, 90 Degree, 2 Flute, Cobalt, Individual Sizes

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$30.97 $49.95 In stock

Drill-mills work best on aluminum. They can be used for spotting holes instead of using a center drill; and are great for chamfering edges.

Use a drill-mill to make a 90 degree angle groove.

Shank sizes and length vary, see Specifications.

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Thomas ★★★★★

These cobalt flutes cut through aluminum like butter, and I love using one to chamfer edges after a rough cut. The 90-degree groove is a nice bonus for quick alignment work.

Joseph ★★★★★

The 90-degree point on these drill-mills makes a perfect spot for my center drills without walking, and they leave a clean chamfer on aluminum edges. I've been using one to cut a precise groove for a jig, and it holds up well through several passes.

George X. ★★★★★

Cobalt holds an edge way longer than the HSS ones I’ve burned through, and the 90-degree point makes spotting holes a quick, accurate step. Used it on aluminum for chamfering and it left a smooth finish without chatter.