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Silver and Deming drill bit with reduced shank

Drill America

Drill America D/ARSD1-19/64 pneumatic accessory

SKU CH-MSDJ-S79XN MPN D/ARSD1-19/64

A 1-19/64 inch high-speed steel drill bit with a 1/2 inch reduced shank for drilling large holes in metal

  • Product typeDrill Accessories
  • Large-diameter drilling with 1-19/64" HSS bit
  • 1/2" reduced shank fits standard chucks
  • Silver and Deming design for heavy-duty use
  • Surface-treated flutes improve chip evacuation

Drill Bit for Large Holes

This Drill America Silver and Deming bit cuts 1-19/64 inch diameter holes in metal. The high-speed steel body with surface-treated flutes resists wear during repetitive drilling. Its 1/2 inch reduced shank fits standard drill chucks while the 6 inch overall length provides reach for deeper workpieces. Industrial users and maintenance crews rely on this design for consistent results.

1/2 Inch Reduced Shank Decides Fit

The 1/2 inch reduced shank determines whether this bit mounts in your drill. Chucks smaller than 1/2 inch cannot hold it, so buyers with 3/8 inch capacity need a different tool. The 1.2969 inch decimal equivalent and 3 inch flute length define the cutting envelope, but shank compatibility is the gatekeeper. Verify your chuck size before ordering.

How it compares

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

Price $53.99
Pricier than about 69% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameDrill America
Model nameD/ARSD1-19/64
Product typeDrill Accessories

Questions about this item

What does the 1-19/64 inch size mean when the bit is in a drill press?

The 1.2969 inch diameter cuts a hole of that exact size; the 1/2 inch reduced shank fits standard chucks while the flute length of 3 inches and overall length of 6 inches determine reach.

How does the 1/2 inch reduced shank affect what chucks can hold this bit?

The reduced shank allows the 1.2969 inch cutting diameter to be used in any 1/2 inch capacity chuck, removing the need for a larger chuck or sleeve.

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