Description
NDT-SP-29P
This 29 pc. drill bit set is very proudly made in the USA. This is Norseman Drill & Tools Magnum Super Premium – Black & Gold Drill Bit Set. These are ‘Jobber Length’ straight shank drill bits in a really nice thermos type case that makes finding and returning each bit really easy. This set is 1/16″ to 1/2″ by 64th’s.
Why Choose Magnum?
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Substantially longer cutting life – The nitro-carburized flute has an increased Rockwell hardness.
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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.
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Stops drill walking – The split point design gives accurate starting without the use of a center punch.
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Holds tighter hole size – The split point design is self centering. This limits the normal oversize drilling characteristics.
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Outstanding quality appearance – The rich amber gold color sets it apart from commodity cutting tools.
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Runs cooler, uses less torque – 135° point takes a smaller chip resulting in less heat. Friction is reduced by amber gold surface treatment.
Type 190-AG NAS 907B
135˚ Split Point Black & Gold Magnum Super Premium
• Manufactured to NAS 907B aerospace specification
• Body and clearance are gold surface treated for maximum lubricity.
• Recommended for use in work hardening grades of stainless steel & other hard metal drilling applications.
