Four piece set includes bits for drilling pilot holes for screw sizes #6,#8,#10 and #12.
Color:As the pictures show Material: HSS Drill 4241
Apply 25HRC hardness of the workpiece, such as carbon steel, sheet iron, insulated panels, PVC panels, wood
Black chamfer drill body material: steel 45
Dimension: 6# 2.38mm (0.0937 inch) x 48mm(L) 8# 2.78mm (0.1094 inch) x 60mm(L) 10# 3.175mm (0.125 inch) x 63mm(L) 12# 3.56mm (0.14 inch) x 65mm(L) Shank: 1/4 hex shank.
Package List:
4 * Countersink Drill Bits 1 * Hex Shank

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dophee 4Pcs / Set #6 #8 #10 #12 HSS Countersink Drill Bit Quick Change Hex Shank Screw

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