ISF Cobalt drill bit 3.5mm COUMD-3.5 10 pieces

Catalog number: COUMD-3.5 Features: ●There is a small diameter drill at the tip, and the second stage is used for end mill cutting, so even thin plates and plastic resins will not crack and clean holes will be made without burrs on the back. ●A new drill that combines a centering drill and an end mill allows cutting at twice the feed speed, resulting in high efficiency. Applications: ●Cutting material: thin stainless steel, stainless steel pipes, etc. Specifications: ●Blade diameter (mm): 3.5 ●Groove length (mm): 45 ●Total length (mm): 73 ●Shank diameter (mm): 3.5 ●Tip angle (°): 120° ●Tip stepped shape ●Two-stage cone with a small diameter drill for guiding at the tip. ●Cross-thinning processing Material/Finish: ●Material: HSCO-M42