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Silver HSS drill bit with reduced shank and three flats

Drill America

Drill America 27/32in HSS 1/2 Reduced Shank Silver and Deming Drill Bit with 3-Flatted Shanks

SKU CH-NZ64-ZWE0C

HSS Silver and Deming drill bit with a 27/32 inch diameter, reduced 1/2 inch shank and three-flatted shank for secure chuck grip

  • Product typeDrill Accessories
  • 27/32 inch drill size handles large-hole tasks
  • High-speed steel construction resists heat during heavy cutting
  • 1/2 inch reduced shank fits standard drill chucks
  • Three-flatted shank design prevents bit slippage under torque

27/32 Inch Silver and Deming Drill Bit

This Drill America bit is a high-speed steel Silver and Deming drill designed for enlarged hole drilling in metal. It features a 27/32 inch cutting diameter with a decimal equivalent of .8438. The tool has a 1/2 inch reduced shank with three flatted surfaces to prevent slippage in the chuck. Overall length measures 6 inches with a 3 inch flute length.

Machinists needing large holes in steel

The reduced shank allows use in 1/2 inch capacity drill chucks, making it suitable for maintenance and fabrication tasks. Buyers who require a straight shank matching the cutting diameter should look elsewhere. Those needing cobalt or carbide substrate for high-heat alloys will need a different material grade. Users requiring longer flute lengths for deep-hole drilling must select an alternative bit.

How it compares

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

Price $18.99
Cheaper than about 66% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameDrill America
Product typeDrill Accessories

Questions about this item

What size drill chuck is needed to hold the 1/2 reduced shank on this 27/32in bit?

The reduced shank measures 1/2 inch, so a drill chuck with at least a 1/2 inch capacity is required to grip it securely.

Will the 3-flatted shank prevent this bit from slipping in a keyless chuck used with older drills?

Yes, the three flats on the shank give the chuck jaws positive contact, reducing slippage even in worn or keyless chucks on older drills.

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