HPMAISON M35 Cobalt Step Bit, 10mm 3-Flat Shank High Speed Steel 5% Cobalt Step Drill Bit (4-32mm, 15 Steps), Silver Titanium Spiral Grooved Cone Drill Bit Hole Cutter for Stainless Steel, Hard Metal

• Premium Material: HPMAISON Cobalt Step Drill Bit is made of True 5% Cobalt M35 High Speed Steel Materials, 66-69 HRC, which provides the first-class heat, wear and chip resistance, more robust and more sharper. So easy to drill clean and precise holes. This step drill bit is perfect and you deserve it!
• Size: Ø 4-32mm, 15 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm). Designed with 10mm 3-flat shank for a bombproof hold. Our cobalt step bit length is 103mm, the 3-flat shank length is 25mm.
• Drilling Efficiency: HPMAISON 4-32mm Cobalt Step Drill Bit has 118° Split Point which provides fast cutting. The drilling speed of cobalt step drill bit is usually three times that of ordinary step bit. Despite the high price, the cost of drilling a single hole with a cobalt drill bit is the lowest, because it can drill more holes.
• Widely Application: HPMAISON Cobalt Step Drill Bit is widely used for Pre-drilling, drilling and deburring. Two grinding cutting edges, the material has high hardness and heat resistance. Very suitable for drilling on Stainless steel, Steel, Sheet Metal, Iron plate, Aluminum, Ducts, Wood, PVC and Plastic.
• Compatible Machines: Our Cobalt Step Drill Bit fits all standard cordless screwdrivers, drills and drill press (secure hold in any drill chuck!) - Compatible with Bosch, Compatible with Makita, Compatible with Einhell and Other Brands Machines.

HPMAISON M35 Cobalt Step Bit, 10mm 3-Flat Shank High Speed Steel 5% Cobalt Step Drill Bit (4-32mm, 15 Steps), Silver Titanium Spiral Grooved Cone Drill Bit Hole Cutter for Stainless Steel, Hard Metal