3pcs Drill Bit Set HSS Steel 4-12/20/32mm Metric Spiral Flute Pagoda Shape Hexagon Shank Hole Cutter Step Drill Bit
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- High Speed Steel 4241#
- 【Step Drill Bits Set】Package includes 3Pcs straight flute step drill bit with size 4-12mm, 4-20mm, 4-32mm. 1/4" Hex Shank
- 【HSS & Titanium Coating】Made of classic high speed steel 4241 and Titanium coated to reduce friction and heat. Easily cut through steel sheets, aluminum sheets, copper & plastic & wood board and many other types of sheet metal with ease
- 【Two-flute Design】Double cutting blades design gives you faster and smoother cutting, automatically deburrs when drilling holes
- 【1/4 Inch Hex Shank】Fits into power tools chuck securely and eliminates slip. Widely used to cut holes in a variety of material like steel, wood, thin iron, aluminum alloy, PVC that the thickness is within 5mm
- 【Working Performance】Suitable for drill, bench drill. Water Cooling during work can effectively extend the service life of step drill bit, recommend drilling rate of 250-400 RPM
