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This 29 pc. drill bit set is very proudly made in the USA. This is Norseman Drill & Tools HSS Heavy-Duty CN-TECH Drill Bit Set. These are ‘Jobber Length’ straight shank with three flats drill bits in a really nice round red ultradex thermos type case that makes finding and returning each bit really easy. This set is 1/16″ to 1/2″ by 64th’s.
Substantially longer cutting life – Superior to Cobalt bits, ultra hard, super premium drill bits that are designed not to snap and shear during hard drilling, even at awkward angles.
Cuts harder materials – The flatter point takes a smaller chip. More torque is directed to a smaller area. This allows drilling into materials with hardness of over 30 on the Rockwell “C” scale.
Stops drill walking – The split point design gives accurate starting without the use of a center punch.
The Nitride process – Diffuses nitrogen into the surface to create a case hardening resulting in superior tool life and exceptional corrosion resistance. Recommended for work hardening grades of stainless steel and other hard metal drilling application.
Cryogenic treatment – Creates a more uniform “grain” structure by transforming retained austenite into martensite.
Runs cooler, uses less torque – 135° point takes a smaller chip resulting in less heat. Friction is reduced by surface treatment.
Proudly Manufactured in the U.S.A