SK11 Spiral Step Drill SSD-6 Stainless Steel 1 piece

The strong twist spiral groove design allows for good chip removal and excellent drilling speed. Drilling, enlarging holes, and deburring stainless steel plates, thin iron plates (general steel), aluminum, etc. The unique blade angle design reduces cutting resistance, is battery efficient and ideal for use with rechargeable impact drivers. The cutting edge is chamfered to ensure good bite into the material and eliminate the need for a center punch. Titanium coating provides excellent heat resistance and long life. Sizes: 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 27, 30mm 6.35mm hexagonal shaft Number of steps: 13 Maximum drillable plate thickness: thin steel plate, aluminum 2.0mm or less Maximum drillable plate thickness: Stainless steel plate 1.0mm or less Compatible models: Rechargeable impact driver, rechargeable drill driver, electric drill