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1820 WalLACE AVE. sT. CHARLES, IL 60174

Replacement Screw Part number: 91455

1/4 Hex Shank With A 3/-8-24 Thread For A Drill Chuck
1/4 Hex dRIVE aDapters (w/ 5M SCREW ADAPTER)

Part Number: 79037



ModelPart NumberHigh TorqueThreaded Mount
1/4 Hex Drive00259NO3*8-24
1/4 Hex Drive
00266NO1/2-20
1/4 Hex Drive
00273YES3/8-24
1/4 Hex Drive
00280YES1/2-20


Chuck Conversion Adapter


  • One side fits in the SDS chuck on the hand tool
  • Other side is a 1/2-20 thread with a left hand MM screw
  • Harden Steel for a long life

Part Number: 12386

Part Number: 79235

Part Number: 31431

A Use a Drill Chuck In A SDS Hammer Drill With This Adapter
  • Reduce a 1/2-20 mount chuck to a 3/8-24 mount
  • Hex Head is only 5/32 wide
  • Adapter flat against the back of the chuck
  • Use a 3/8-24 mount chuck in a 1/4 hex screw driver
  • Harden Steel for a long life
Right Angle Adapter

Adapters & Accessories

  • Handles speeds up to 2500 RPM
  • Side oil hole for lubrication
  • Hex shaft to fit on a Handle drill
  • This is not for Machine Tool use
  • 3Comes with a 3/8 Medium duty drill chuck