Greenlee 66PT-1 18 Inch Steel Hex-Shank Self Feed Screw Point Auger Drill Bit
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Manufacturer Greenlee
Mfg Catalog # 66PT-1
North Coast Part # 13152


  • Improved cutting edge provides 30% longer life span
  • Patented new design for improved cutting and cleaner holes
  • Self-feeding screw point draws bit through wood
  • Unique patented design cutting angle - smoother starts, reduced cutting loads
  • Made of super tough, heat-treated steel
  • Cuts through nails and provides longer life
  • Shorty" bits - for working in tight places, yet still can go through three abutting 2 x 4s
  • See Bit Extensions if more length is required


  • Bit Diameter: 1.000 IN (25.400 MM)
  • Material: Heat Treated Steel
  • Overall Length: 18.000 IN (457.200 MM)
  • Shank Diameter: 7/16 IN (11.100 MM)
  • Shank Type: Hexagonal
  • Sub Brand: Nail EaterĀ®
  • Twist Length: 15.000 IN (381.000 MM)
  • Type: Extreme
  • Weight: 1.800 LB (817.000 GM)


UPC 78331030931
GTiN 00783310309314
Type Extreme
Diameter 1 in
Material Heat Treated Steel
Applications For Wood
Shank Size 7/16 in
Weight 1.800 lb
Shank Diameter 7/16 in
Shank Type Hexagonal
Family Brand Name Greenlee
Flute Length 15 in
Overall Length 457.2 mm
Sub Brand Nail Eater

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