11" Extension

Cat # 48-20-5079


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What's Included


Style Extension


The Milwaukee® 11" Extension lets you drill deeper in concrete, block and brick with drilling heads from 1-1/2" to 3-1/4". This versatile adapter can be used with LHS Thick-Wall Carbide-Tipped Core Bits, LHS 4-Cutter Fluted Bits or Turbo Tunnel bits for large holes in a variety of sizes and depths. The Large Hole Drilling System offers maximum versatility to suit a variety of jobsite applications, hammers and depths. Simply choose an LHS core bit, tunnel bit or 4-cutter fluted bit in the size you need and add a spline shank or SDS-MAX shank adapter. For greater lengths, add 11" extensions (48-20-5079).


  • Long life: Proprietary steel reduces breakage and extends extension life
  • Practical design: Maximize the value of your existing bits for deep drilling applications
  • Multipurpose shank: Works with a variety of drilling heads from 1-1/2" to 3-1/4"

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