Meichoon HSS Large Step Drill Bit 4-32mm Cobalt M35 Spiral Groove Pagoda Step Drill Bit Set Hole Reamer Triangle Handle HSS Co Drilling Counterbore DC17B

High Hardness - Meichoon M35 Cobalt Step Drill Bits is made of high speed steel together with cobalt which lasts the bit a long using life. Features: 1. High speed steel for longer service life; 2. Double cutting blades design enables a faster and smoother cutting; 3. The advanced double spiral flute design outperforms straight flute design and extends the life of the bit. The split point tip increases speed and they also include laser-engraved measurements to increase step visibility. 4. The sharpness ensure easily cut through most sheet metal plastic and some other materials with ease. Specificaions: Material: High speed steel Sizes of the Step Drill Bits:15 Steps (4mm 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm 22mm 24mm 26mm 28mm 30mm 32mm) Package included: 1 x4-32mm M35 HSS Co Drill Bit