8.4mm C2/K20 Tungsten Carbide Straight Shank Spiral Flutes Twist Drill Bit Engraving End Mills Specification: Glass Type: Convex Mirror

Specification: Glass Type: Convex Mirror Glass

do not self-programming

Specifications: Ball Diameter: 3mm

Wire Length: 79cm / 31

8.4mm C2/K20 Tungsten Carbide Straight Shank Spiral Flutes Twist Drill Bit Engraving End Mills Specification: Glass Type: Convex MirrorSpecifications: Drilling Diameter: 8. 4mm 0. 331" Flute Length: 40mm 1. 57" Shank Diameter: 8. 4mm 0. 331" Overall Length: 67mm 2. 64" Material: C2 K20 Tungsten Carbide Finish: Uncoated Cutting Hardness (Max.): HRC45 Package Content: 1pcs x Twist Drill Bit Descriptions: Constructed from medium grain C2 K20 tungsten carbide, the drill bit has good toughness, high hardness (HRA89) and wear resistance. With good milling and cutting performance, can