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Silver and Deming HSS drill bit 41/64 inch with three-flatted reduced shank

Drill America

Drill America 41/64in HSS Silver & Deming Drill Bit 3-Flatted Shank

SKU CH-X4EY-BBDN8

High-speed steel drill bit with a 41/64-inch diameter and three-flatted reduced shank for secure chuck grip

  • Product typeDrill Accessories
  • 41/64 inch diameter drills large holes cleanly
  • High-speed steel construction resists wear during heavy use
  • Three-flatted shank prevents slipping in the chuck
  • 1/2 inch reduced shank fits standard drill chucks

41/64in Silver & Deming drill bit

This 41/64in high-speed steel drill bit features a reduced 1/2in shank with three flatted surfaces for secure chuck grip. Silver and Deming geometry suits general-purpose drilling in metal, wood and plastic. Surface-treated flutes help clear chips and reduce friction during use.

Reduced shank upgrade for 1/2in chucks

The bit replaces smaller-diameter drills when a 41/64in hole is required and the machine only accepts 1/2in shanks. The jump is worth it when a single large hole eliminates step-drilling or when the flatted shank prevents slippage that round shanks allow.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 80% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameDrill America
Product typeDrill Accessories

Questions about this item

What chuck size is needed for the 1/2 reduced shank?

The bit has a 1/2 inch reduced shank so it fits any drill chuck that opens to at least 1/2 inch. The three flats on the shank prevent slipping in a standard three-jaw chuck.

How do you seat the three-flatted shank correctly?

Align each flat with a jaw of the chuck, then tighten firmly. The step people miss is checking that all three flats are fully engaged before drilling.

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