Flex Shank Installer Bits

1890748 IRWIN Flex Shank Installer Bits

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Flex Shank Installer Bits Features:

  • Hole in flute for easy wire pulling through walls, ceilings and floors
  • 3-flatted shank prevents slipping in drill chuck and includes hole for wire pulling
  • Tapered flute for faster chip ejection, less binding, and smoother drilling

Auger Tip

  • Screw tip with aggressive pitch delivers easy starts and fast drilling
  • Dual spurs for faster, cleaner holes and less breakout

Screw Tip

  • Screw tip with aggressive pitch delivers easy starts and fast drilling

Masonry Tip

  • Tungsten carbide tip for extended life in brick, block and mortar joints


  • Unique combination of 135° self-centering split point stepped to 118° hole enlarging body for fast, easy starts and smooth drilling in metal, wood or plastic

NOTE: Not all products are currently listed on our website. If you don't see the specific product you are looking for, please contact our Customer Service Department for assistance.

Item #DiameterLengthTip Type
18909441/4"24"HSS Tip
18907463/8"24"Auger Tip
18907673/8"24"Screw Tip
18909453/8"24"HSS Tip
18909461/2"24"HSS Tip
18907473/4"24"Auger Tip
18907481"24"Auger Tip
18907491-1/4"24"Auger Tip
18909471/4"36"HSS Tip
18907503/8"36"Auger Tip
18907683/8"36"Screw Tip
18909483/8"36"HSS Tip
18907511/2"36"Auger Tip
18907691/2"36"Screw Tip
18909491/2"36"HSS Tip
18907529/16"36"Auger Tip
18907709/16"36"Screw Tip
18907533/4"36"Auger Tip
18907713/4"36"Screw Tip
18907541"36"Auger Tip
18907961/4"48"Masonry Tip
18909503/8"48"HSS Tip
18907553/4"48"Auger Tip
18910011/4"54"HSS Tip
18907563/8"54"Auger Tip
18907723/8"54"Screw Tip
18907953/8"54"Masonry Tip
8910023/8"54"HSS Tip
18907571/2"54"Auger Tip
18907731/2"54"Screw Tip
18907971/2"54"Masonry Tip
18910031/2"54"HSS Tip
18907589/16"54"Auger Tip
18907749/16"54"Screw Tip
18907593/4"54"Auger Tip
18907753/4"54"Screw Tip
18907601"54"Auger Tip
18910041/4"72"HSS Tip
18907613/8"72"Auger Tip
18907763/8"72"Screw Tip
18910053/8"72"HSS Tip
18907621/2"72"Auger Tip
18907771/2"72"Screw Tip
18907981/2"72"Masonry Tip
18910061/2"72"HSS Tip
18907639/16"72"Auger Tip
18907789/16"72"Screw Tip
18907643/4"72"Auger Tip
18907793/4"72"Screw Tip
18907651"72"Auger Tip
18907661-1/4"72"Auger Tip