Irwin 42936 Forstner Drill Bits Extension Bore, 3/8" Dia. x 4" L

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Extension bores precision holes at any angle, features a brad point to start the bit cleanly, even on uneven surfaces and extra sharp cutting edges to drill smooth, flat-bottomed holes.
SKU: 40051561
MFG: 42936
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  • Diameter: 4"
  • Extension
  • Reduced shank fits 3/8" and larger drills and drill presses
  • Starts the bit cleanly on uneven surfaces


WARNING: Cancer and Reproductive Harm -


MFR: 42936
SKU: 40051561
UPC: 024721429360
Brand: Irwin
Weight: 1.0 lb