3 Piece Step Drill Bit Set, M35 Four Spiral Flute Step Bits for Metal 1/8"-7/8", Industrial Grade Wear-Resistant TiAlN Coated Step Bits, 1/4" Hex Shank Unibit Cone Drill Bits for Stainless Steel, Metal, Wood, Plastic
The Features of Step Drill Bit:
135° Split-Point Tip - With a 135° split-point tip and four spiral flutes, which can provide smooth drilling, allowing you to cut faster. This also ensures you get a sharp cut on a variety of materials.
Widely Application - 34 size in one step drill bits set. The step bit contains a variety of specifications to meet your drilling holes needs. The step drill bits can work on stainless steel, metal sheet, aluminum sheet, wood, plastic ect.
Warm Tips - It's better to use cutting fluid or lubricant to reduce friction and heat when drilling harder materials. Water should be added to cool the drill bit When drilling large diameter holes, which can extend the service life of the step drill.