Shank:Triangle round handle. Type: 5-35mm(5,7,10,12,15,17,20,22,25,27,30,32,35mm),Shank: 24 x 13mm. Titanium coated to reduce friction and run cooler. Automatically deburr holes as you drill. Widely used to cut holes in a variety of material like steel, wood, thin iron, aluminum alloy, insulation boards, PVC sheet,ect.
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