Nice Mighty Spiral Step Drill 2S-NMS-30EG-H TRUSCO

●Proprietary spiral blade reduces chip welding. Improved blade life.●Nice Mighty with a large diameter size and hexagonal shaft(6.35mm)specifications.●The shank part uses commercial screwdriver bit, so if the shaft is broken, the issue can be resolved by replacing the bit in a single operation.●Work material: Iron/copper plate(up to 2mm), aluminum plate/wood/resin(up to 3mm), stainless steel plate(up to 1mm).●Step Width (mm):3.0(2)●Number of Stages (stage):12●Shank Diameter (mm):6.35●Drilling Dimension (?3mm):5, (9), (11), 13, 15, 16, 19, 21, 22, 24, 28, 30.5●Surface Treatment: Titanium Coating●Cobalt High Speed Steel●Cutting Oil●Screwdriver bit