ITEM NAME:5pcs Hex Woodworking Countersink Drill Bit Set&Wrench Titanium #5 #6 #8 #10 #12 Product Description: Name: 1/4 hex shank taper hole drill Sunk hole drill Wood countersunk head drill Upper screw reaming drill bit. Handle: 1/4 hex shank. Material: High speed steel 4241 (suitable for workpieces with hardness below 25HRC, such as carbon steel, thin iron plate, insulation board, PVC board, wood board, etc.). The black chamfer is made of 45 steel. specification: Chamferer Corresponding drill size 5# 1.98mm 6# 2.38mm 8# 2.78mm 10# 3.175mm 12# 3.56mm Hex shank diameter is 6.35mm Function: You can drill the screw hole and the counterbore that accommodates the screw cap at the same time and keep the two on the same axis. After screwing the screw, the screw cap is below the plane of the board! Suitable for drilling machines with collets or joints, suitable for drilling holes in hard wood and wood. Package Include: According to your Choose!.After screwing the screw, the screw cap is below the plane of the board! Material: High speed steel 4241 (suitable for workpieces with hardness below 25HRC, such as carbon steel, thin iron plate, insulation board, PVC board, wood board, etc.).
