Letter gauge drill bits are made from premium grade high speed steel. Precision ground 118 degree points. Designed to operate in stationary or portable tools. General purpose drilling in wood, metal and plastic.

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Letter gauge drill bits are made from premium grade high speed steel. Precision ground 118 degree points. Designed to operate in stationary or portable tools. General purpose drilling in wood, metal and plastic.

  • U.S. AISI M2 Molybdenum High Speed Steel
  • 135° Split Point
  • Fully Ground from billet blanks
  • Rockwell Hardness: Point C65 Shank C34
  • Letter Gauge F Drill Bit - 0.257" dia. 4-1/8" len.
  • U.S. AISI M2 Molybdenum High Speed Steel
  • 135° Split Point
  • Fully Ground from billet blanks
  • Rockwell Hardness: Point C65 Shank C34
  • Letter Gauge F Drill Bit - 0.257" dia. 4-1/8" len.

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