Yamawa Weak Twist Groove A-Type 90° Center Hole Drill Left Blade CD-Q LH 1X90°X4 CD-Q-LH-1X90X4 1 Piece

Catalog number: CD-Q-LH-1X90X4 Features: ●This is a left-edged center hole drill with a weak twist groove A type for machining 90° center holes, which allows for simultaneous positioning and chamfering. ●The groove has a weak twist, making it suitable for relatively hard materials. Specifications: ●Taper diameter (mm): 1 ●Shank diameter (mm): 4 ●Total length (mm): 35 ●Center hole angle (°): 90 ●Surface treatment: Non-coated ●Blade length (mm): 1 ●Blade shape: Double-edged ●Blade length (mm): 1 Material/Finish: ●High-speed tool steel (HSS)