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Drill America

Drill America 55/64in HSS 1/2in Shank KFD Drill Bit with 3-Flat Shank

SKU CH-RV9N-48AZ1

A 55/64 inch high-speed steel drill bit with a 1/2 inch reduced shank and three-flat grip for heavy-duty drilling

  • TypeDrill Accessories
  • 55/64 inch HSS drill bit handles heavy-duty drilling
  • 1/2 inch reduced shank fits standard chucks
  • 3-flat shank prevents slippage under load
  • Split point design starts holes without wandering

55/64in HSS KFD Drill Bit for Heavy Duty Work

This Drill America bit is a high-speed steel (HSS) Killer Force drill accessory with a 1/2in reduced shank. It features a heavy-duty split point and a 3-flat shank design to prevent slippage in the chuck. The bit is built for demanding drilling tasks in metal and other tough materials. It suits professionals and serious DIY users who need reliable performance.

Upgrades from standard twist bits when grip

The 3-flat shank replaces smooth round shanks that can spin under high torque. The split point replaces conventional points to start on contact without walking. The KFD construction upgrades basic HSS for longer life in hard alloys. The jump is worth it when you drill 55/64in holes frequently and need the shank to hold fast in a 1/2in chuck.

Highlights

  • 55/64 inch HSS drill bit handles heavy-duty drilling
  • 1/2 inch reduced shank fits standard chucks
  • 3-flat shank prevents slippage under load
  • Split point design starts holes without wandering

Specifications

BrandDrill America
TypeDrill Accessories

Questions about this item

What chuck size does the 1/2in shank on this 55/64in bit require?

The 1/2in shank fits any standard drill chuck that opens to at least 1/2in capacity.

How should the 3-flat shank be oriented when tightening the chuck?

Align each flat against a separate chuck jaw so the jaws grip the flats, not the rounded shank, preventing slip under load.

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