2pcs 21mm Black Oxide High Speed Steel HSS 9341 1/2" Reduced Shank Drill Bits Garden The self-drilling screws can drill

The self-drilling screws can drill well into the wood

67"(ID*OD)

and other materials

Bore Diameter: 66

Open Size: 205x205x28mm / 8x8x1

2pcs 21mm Black Oxide High Speed Steel HSS 9341 1/2" Reduced Shank Drill Bits Garden The self-drilling screws can drillSpecifications: Cutting Diameter: 21mm 0. 83" Reduced Shank Diameter: 1 2" Cutting Edge Length: 60mm 2. 36" Overall Length: 150mm 6" Split Point Angle: 118 Degree Material: High Speed Steel 9341 Finish: Black Oxide Hardened to: HRC62 65 Package Content: 2pcs x Reduced Shank Drill Bits Descriptions: High speed steel tools combine hardness and toughness for wear resistance and durability. It can maintain the sharpness even at high temperatures. Black