ATOPLEE 1pc Cobalt Step Drill Bit,M35 5% HSS Co,Spiral Flutes and 1/4 Inch Hex Shank,Unibit Step Bit for Hole Drilling in Metal, Copper, Aluminum, Wood, Plastic,9 Steps,4-12mm

The HSS-Co Straight Slot Hex Handle Step Drill is a top-notch drilling tool designed for various materials, including stainless steel, carbon steel, aluminum, iron, and more.

With its high hardness and wear resistance, this drill bit delivers sharp cutting edges that can efficiently drill through even the toughest workpieces.

The 9-step handle provides a comfortable grip, while the 1/4" diameter handle and 50mm edge length offer precise control over your drilling operations. The product is suitable for both pistol drills and bench drills, ensuring versatility in your workshop.

Plus, water injection cooling can significantly extend the life of the drill bit while working.

The recommended drilling speed ranges from 250-400 rpm, providing optimal performance. Don't miss out on this exceptional drilling tool! Order now and experience the difference it can make in your workshop.