Mengshen Co Step Drill Bit 4-32mm Spiral Groove, M35 HSS Multi Hole Cutting Enlarge Stainless Steel Plate Quenching Steel Plate Metal Sheet Counterbore Drilling Triangle Handle Drill Bit Set

High Hardness - Mengshen 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.Specifications:Material: High speed steelSizes 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 x 4-32mm M35 HSS Co Drill Bit

• Much More hardness - M35 HSS is harder lot than HSS 4241, suit for drilling in stainless steel plate & quenching steel plate , iron plate, aluminum, wood.
• Good Design - Triangle shank fits into power tools chuck securely and eliminates slip; two-flute design clears chips faster and allows particles to escape easily.
• Split point tip increases speed. It can automatically deburr holes while drilling to keep the drill bit clean.
• One step drill bit meets all your requirements, 4-32mm M35 HSS step drill bit with 15 steps sizes - 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm
• You can use water to cooling it when it is work and it can be used for even longer.