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

• 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.

HIGH HARDNESS Mengshen M35 cobalt step drill bits are made of high speed steel with cobalt, which lasts a long service life. Features: 1. High-speed steel for longer service life. 2. Dual cutting blade design allows for faster and smoother cutting. 3. The advanced double flute spiral design outperforms the straight flute design and extends the life of the bit. The split tip increases speed, and it also includes laser-etched measurements to increase the visibility of steps. 4. The cutting edge ensures easy cutting through most sheet metal, plastic and other materials with ease. Features: Material: High Speed Steel Step Drill Bit Size: 15 steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm In, 1.18 1 inch, 32mm) Package includes: 1 x M35 HSS Co 4-32mm Drill Bit