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#21 Super Primalloy® Cryo-Gen N™ Maintenance Length Wire Drill Bit

#21 Super Primalloy® Cryo-Gen N™ Maintenance Length Wire Drill Bit

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Item Number: 826921
Package Weight: 0 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 and 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 - The 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.
  • FLATTED SHANKS - Virtually eliminates slippage in the drill motor and prevents damage to the drill and chuck.
  • MADE IN THE U.S.A.

Product Specification

Bit Type:  Standard
Brand:  Super Primalloy®
Diameter:  Wire Gauge No. 21
Finish:  Black Oxide, Ferro Gold
Flute Length:  2-1/8"
Material:  M Series Alloy
Measurement Type:  SAE
Overall Length:  3-1/4"
Series:  Super Primalloy® Cryo-Gen N™
Tip Style:  135° Split Point

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