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Triumph T1HD 7/16" High Speed Steel Jobber Drill Bit

Brand: Triumph Mfg#: 12528
Product#: 172716
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ThunderBit® High Performance drills are made from industrial-grade steel, with a friction-reducing black and bronze oxide surface treatment for higher drilling speeds. Optional Titanium Nitride (TiN) coating provides the ultimate performance and durability. Unique spiral flute design improves chip ejection and coolant flow to the point; and the heavy-duty core guarantees increased strength and reduced breakage


  • Premium grade steel
  • Heavy duty construction
  • Unique flute design for superior material removal


  • Brand: Triumph
  • Product Line: T1HD
  • Length Group: Jobber
  • Applicable Materials: Iron, Steel, Stainless Steel, Wood
  • Material: High Speed Steel
  • Flute Type: Spiral
  • Point Type: Split
  • Finish: Black/Bronze Oxide
  • Series: T1HD
  • Point Angle: 135 deg
  • Flute Length: 4.0625 in
  • Diameter: .4375 in
  • Type: Heavy Duty
  • Overall Length: 5.5 in
  • Shank Type: Round Straight