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Irwin 7/16" x 18" Installer Bit

Brand: Irwin Mfg#: 39107ZR
Product#: 17339107ZR
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Irwin Power Drill Installer Bit, 0.4375 in Diameter, 18 in Overall Length, 0.37 in Shank, Cylinder Shank, 82 deg Point, Clockwise Cutting Direction, Solid Structure, Alloy Steel, For Telephones, Cable, TV


  • Wire hole at the tip of the bit makes it easy to pull wire through walls, ceilings, and floors
  • Constructed of premium alloy steel for boring into a variety of materials including wood, plaster, and metal lath
  • Ideal for installation of small wire for telephones, cable, TV, computers, and security systems


  • Brand: Irwin
  • Diameter: .4375 in
  • Overall Length: 18 in
  • Shank Size: .37 in
  • Cutting Direction: Clockwise
  • Point Angle: 82 deg
  • Structure: Solid
  • Shank Type: Cylinder
  • Usage: For Telephones, Cable, TV, Computers and Security Systems