Cobalt Drill Bits 1/16"-1/2" M35 HSS Co Jobber Twist Drill Bit Drill

✅Drill Bits Size:  1/16"-1/2"(Diameter)  

✅Quantity/Package: 20Pcs/10Pcs in a Package.

✅Material: HSS Cobalt High Speed Steel is the best material for improving performance and drilling life when drilling and cutting harder matels, such as stainless steel and other metal.

✅Surface Treatment: The Gold Oxide surface treatment strongthen the hardness of surface by oxiding treatment on the cobalt steel, to ensure the long drilling life and better drilling performance.

✅Unique Function: Cobalt drill bits are more expensive than other drill bits, but if you regular drilling through metal, they are a good investment since they tend to last longer.

✅135 Deg. Split Point: No center punch is needed-- the aggrevsive 135 Deg.Split Point quick-cut points are self-centering and penetrate quickly with less pressure and no "walk" or"wander".

✅Manufacturing Process:Precision ground points, flutes, body, clearance and drill diameter for ultimate in accuracy and peroformance. Ground flutes provides fast chips removal to maximize accuracy and efficiently along the full working surface of the bit.

✅Chucking Shank: Round shank allow use with a wide variety of tool holding systems.