BAMILL HSS Step Drill Bit Set Large Cone Titanium Bit Set Metal Hole Cutter 4-12/20/32

Features: * brand new and high quality. *With the step drill bits we offered you can process different kinds of diameter holes which greatly saves you a lot of trouble.Great for metal wood plastic countersunk. *Suitable for Home DIY and General Building Engineering Use. *High speed steel makes it last longer than others ensures easily cut through stainless steel sheets aluminum sheets copper & plastic & wood board and many other types of sheet metal with ease and it can automatically deburr holes while drilling to keep the drill bit clean. *Suit for use in hardness under 28 artifacts (Such as: Stainless steel iron plate aluminum wood ). Specifications: *Material: high speed steel 4241 *Surface treatment: Nitriding (black) *Type: Drill Bit *Size: 4-12 5 Steps (Diameter 4 6 8 10 12mm) 4-20 9 Steps(Diameter 4 6 8 10 12 14 16 18 20mm) 4-32 15 Steps(Diameter 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32mm) *Quantity: 1pcs Package Contents: 1*Step Cone Drill Bit Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.