2pcs 21mm Black Oxide High Speed Steel HSS 9341 1/2" Reduced Shank Drill Bits Garden Used for groove machining

Used for groove machining

67"(ID*OD)

and reduce the noise when moving the chair or the table

Diameter: 6mm

Mounting Plate Hole Dia: 6mm/0

2pcs 21mm Black Oxide High Speed Steel HSS 9341 1/2" Reduced Shank Drill Bits Garden Used for groove machiningSpecifications: 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