#1 x 3-7/8" Premium Wire Gauge Number Drill Nitro-Carburized Hi-Moly Tool Steel - Shop Pro

661.03.1 MFG #: F61620
The ShopPro number drills are gold surface treated in order to preserve lubrication and create a smoother drilling process.
  • Features
  • Specifications
  • Manufactured to NAS 907-B specification from premium hi-molybdenum steel
  • Premium wire gauge number drill nitro-carburized hi-moly tool steel
  • Low temperature stress relief improves lubricity and toughness
  • 135° split point, magnum super premium
  • Made in USA


  • Cutting Direction: Right Hand
  • Finish: Black & Gold
  • Flute Length: 2-5/8 Inch
  • Flute Type: Spiral
  • Material: Nitro-Carburized High Speed Steel
  • Overall Length: 3-7/8 Inch
  • Point Angle: 135 Degree
  • Point Type: Split
  • Shank Type: Plain Round
  • Specification: NAS 907-B
  • Type: Heavy Duty
  • Wire Size: #1