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Norseman Super Premium 21 Piece Drill Bit Index
Norseman Super Premium 21 Piece Drill Bit Index 44130


 
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Product Code: SP21
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Description
 
Norseman Super Premium 21 Piece Drill Bit Index.  Bit sizes 1/16" through 3/8" by 64ths. These jobber length bits feature a 135 degree split point to keep the bits from walking on the surface.  This is a high quality set, made right here in MN.  Check out the video below drilling a hole in a grade 8 bolt.  Not a common application but you get the idea, these are top quality bits!
Features
  • Special Hi-Molybdenum tool steel.
  • 135° split point for fast penetration and accurate starting without a center punch.
  • Precision ground point, body, clearance and drill diameter for the ultimate in accuracy and performance.
  • Body and clearance are gold surface treated for maximum lubricity.
  • Drills are heat treated at 2185° F and then nitro-carburize finished at 950° F to be measurably harder than high speed steel.
  • Space aged nitro-carburized steel withstands substantially higher drilling temperatures while maintaining sharpness.
  • Recommended for use in work hardening grades of stainless steel and other hard metal drilling applications.


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