2pcs 20mm Black Oxide M2-6542 High Speed Steel HSS 1/2" Reduced Shank Drill Bit Centrifuge Tubes & Tube Boxes which provides greater support and

which provides greater support and stability

This kit will come with nuts

If excessive force is applied

Material: Polypropylene Film

garage and factory etc

2pcs 20mm Black Oxide M2-6542 High Speed Steel HSS 1/2" Reduced Shank Drill Bit Centrifuge Tubes & Tube Boxes which provides greater support andSpecifications: Cutting Diameter: 20mm 0. 79" Reduced Shank Diameter: 1 2" Cutting Edge Length: 65mm 2. 56" Overall Length: 160mm 6. 3" Material: M2 6542 High Speed Steel Finish: Black Oxide Hardened to: HRC62 65 Package Content: 2pcs x Reduced Shank Drill Bits Descriptions: M2 6542 high speed steel (M2 high speed steel with 5% cobalt) provides an excellent combination of hardness, wear resistance, and toughness. Adding cobalt can improve red hardness