5Pcs Step Drill Bit Straight Groove Pagoda Hole Cutter Metal Cone Drill Bit Hole Opener 3/16" 1/2" 1/4" 3/4" 1-3/8" 7/8" 1/8"

5Pcs Step Drill Bit Straight Groove Pagoda Hole Cutter Metal Cone Drill Bit Hole Opener 3/16" 1/2" 1/4" 3/4" 1-3/8" 7/8" 1/8"

Increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily.

Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes. You are capable to drill holes in different sizes which can meet your normal needs.

Non-walking drill tip provides fast and smooth drills on wood board, plastic board etc.