Yamawa Weak Twist Flute A-Type 90° Carbide Center Hole Drill C-CD-Q 3X90°X7.7 C-CD-Q-3X90X7.7 1 Piece

Catalog number: C-CD-Q-3X90X7.7 Features: ●This is a weak-twist groove A-type center hole drill for 90° center hole processing, which can perform positioning and chamfering at the same time, and is particularly suitable for hard materials and mass production processing. Specifications: ●Taper diameter (mm): 3 ●Shank diameter (mm): 7.7 ●Total length (mm): 55 ●Center hole angle (°): 90 ●Surface treatment: Non-coated ●Blade length (mm): 3 ●Blade shape: Double-edged ●Blade length (mm): 3 Material/Finish: ●Ultra-fine grain carbide alloy (HF)