25 Pc. Metric Import HSS Black Oxide Jobbers Drill Set

Century's Pro-Grade Black Oxide, USA made Black Oxide Drill Bits are manufactured from industrial high speed steel surface treated for high performance and long life. M2 grade steel for drilling common steel flat bar angle iron tubing wood and plastic. No center punch needed Century 135° quick-cut points are self centering and penetrate faster with less pressure will not walk or wander at the starting surface. Manufactured to Aerospace NAS 907-B specifications. 21 piece multi-purpose set. Manufactured from industrial high speed steel, surface treated for high performance and long life. M2 ...

Applications: Used to enlarge existing holes Features: Standard 3 flute design Right hand (clockwise rotation) cutting direction Since chip loads are spread over a greater number of cutting edges, reduce regular drill speed 25% and double feed rate Normal spiral - helical flutes Standard shanks that correspond to the drill diameter Normal length drills have flutes proportional to length

Heavy-duty construction for drilling in tougher materials. Manufactured from premium high-speed steel. 135° P3 split point is self-centering for reduced thrust and easier penetration. Sizes smaller than .0625" do not have split point. Black oxide surface finish increases wear resistance and adds lubricity, improving chip flow. For drilling in stainless steel, tool steel, alloy steel and cast iron.

Consumer Use Titanium Nitride Drill Bit Set 3/8" Reduced Shank Hardened and Tempered Steel For Strenght and Long Wear Precision Ground Flute Contains Drill bit sizes 1/16" to 1/2" by 64ths Heavy Duty Metal Case With Index

High Speed Steel Taper Shank Drill Applications: Applications: For general purpose drilling where a drill longer than jobbers length is required Features: Manufactured with straight shanks that have the same diameter as the flute Right Hand Cut Black oxide finish is designed for extreme durability and long life Right Hand Cut