Note: This is a refill kit for 82-7501 and only contains the drill bits, the index is not included in this refill kit.

• 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
  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 (on sizes 3/16" and larger).
• Made in the U.S.A.