Unique Two Flute Design
Two Flute Design also lets the material particles escape easily for a much more clean drilling operation. Industry grade High Speed Steel with titanium coating can reduce friction and run cooler, which ensures wear-resistance and durability.

Hex Shank
Each step drill bit optimally fits into power tools such as impact drill chucks securely and eliminates slip for higher efficiency of output.

Wide Application
with the cone drill bit, you may easily drill different kinds of holes on sheet metal, aluminum sheets, wood chips, plastic and wood board. It's a perfect choice for DIY and engineering use.

Product Description
Each step drill bit manufactured by Qilucky comes with precision manufacturing and is built with high-grade high-speed steel. Our step bits,, come with a titanium coating that promote the strength and cutting power of each of these drill bits. In this 3 piece set, you get a total of 31 step sizes to create clean holes in metals, plastic and wood. The spiral grooved design deburrs faster and gives you clean cuts every time. Each bit set is engineered for faster drilling and you can have confidence in knowing you will get the job done with accuracy and efficiency with bits that truly perform. Need a center punch to start your hole drilling?