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21/64" Super Primalloy® Cryo-Gen N™ Maintenance Length Drill Bit - 3 Pack

21/64" Super Primalloy® Cryo-Gen N™ Maintenance Length Drill Bit - 3 Pack

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Item Number: 8275211
Package Weight: 0.2 lbs
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Product Details

  • Super Primalloy® CONSTRUCTION - The proven, heavy duty construction of our Super Primalloy® Drills.
  • MULTI-PHASE CRYOGENIC TREATMENT - Patented deep thermal cycle brings drills down to -300°F to alter and refine the molecular grain structure, relieve stress fracturing and increase durability & life.
  • "N" SERIES NITRIDE TREATMENT - Nitride treatment case hardens the cutting surfaces for superior edge retention, faster long-term hole creation and longer service life.
  • SUPER HEAVY DUTY 135° SPLIT POINT - 135° split point geometry eliminates the need for center punching. Allows for easier penetration and increased life in high tensile materials.
  • MAINTENANCE LENGTH - Overall length reduced by an average of 15% to provide increased rigidity and breakage resistance.
  • STABILIZED MOLECULAR STRUCTURE - Cryogenic treatment reduces brittleness and provides extended tool life.
  • HIGH LUBRICITY SURFACE TREATMENT - Dark gold surface treated body provides excellent lubricity for increased drill life.
  • MODIFIED FLUTE & WEB - Provides increased strength and durability.
  • SUPER-TOUGH "M" SERIES ALLOY STEEL CONSTRUCTION - Superior tool steel provides exceptional wear resistance and longer life.
  • MADE IN THE U.S.A.

Product Specification

Alt Hyphen Number:  82-75211
Brand:  Super Primalloy®
Diameter:  21/64"
Drill Length:  Maintenance Length
Finish:  Nitride
Flute Length:  2-9/16"
Hand:  Right Hand
Material:  M Series Alloy
Measurement Type:  SAE
Overall Length:  4-1/16"
Series:  Cryo-Gen N
Sold As:  Individual
Subcategory:  Maintenance Length Drill Bits
Tip Style:  135° Split Point

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