zhihu Set of 8 Step Drills, Hexagonal Shank, 0.1 - 0.5 inches (3 -

(High Quality Material) The step drill is made of ultra-high hardness high speed steel (HSS steel) and has been treated with a titanium for a superior level of hardness than ordinary steel step drills, making it less likely to break Easy Set: The step drill design reduces pressure when cutting, allowing for better disbursement of cut particles, making cutting smooth. Stair groove prevents chuck from sliding Product Overview: Set of 8, 0.1 - 0.5 inches (3 - 13 mm), Hex Shaft Shank Step Drill Bits be attached to an electric drill Various Uses: This step drill be used for a wide range of applications, from home DIY to field work. An essential tool for drilling stainless steel, thin iron plates, aluminum plates, wood, vinyl, and resin, etc., household DIY projects, enlarging the bottom holes, chamfering, deburring, etc (Peace of Mind) Our products are subject to strict quality inspections. If there is an initial defect, please feel free to contact us. We will respond as soon as possible

We will only accept returns if the item is different from the picture shown

on the product page or is not in the same condition as the product description.

All items are 100% authentic: we verify authenticity before selling.