Yamawa Weak Twist Groove A-Type 90° Center Hole Drill Left Blade CD-Q LH 2.5X90°X7.7 CD-Q-LH-2.5X90X7.7 1 Piece

Catalog number: CD-Q-LH-2.5X90X7.7 Features: ●This is a left-hand edge center hole drill with a weak twist groove A type for 90° center hole processing, which allows for positioning and chamfering at the same time. ●The groove has a weak twist, making it suitable for relatively hard materials. Specifications: ●Taper diameter (mm): 2.5 ●Shank diameter (mm): 7.7 ●Total length (mm): 50 ●Center hole angle (°): 90 ●Surface treatment: Non-coated ●Blade length (mm): 2.5 ●Blade shape: Double-edged ●Blade length (mm): 2.5 Material/Finish: ●High-speed tool steel (HSS)