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Silver and Deming drill bit with reduced shank and treated flutes

Drill America

Drill America 1-9/64in HSS 1/2in Reduced Shank Silver and Deming Drill Bit pneumatic accessory

SKU CH-655B-BF005

A 1-9/64 inch high-speed steel Silver and Deming drill bit with a 1/2 inch reduced shank and 6 inch overall length

  • Product typeDrill Accessories
  • 1-9/64 inch bit bores large holes cleanly
  • High-speed steel construction resists wear in tough materials
  • Reduced 1/2 inch shank fits standard drill chucks securely
  • Surface-treated flutes improve chip evacuation for smoother cuts

1-9/64in HSS Silver and Deming Bit

This Drill America accessory is a high-speed steel drill bit with a reduced 1/2in shank designed for Silver and Deming applications. The surface-treated flutes provide durability when drilling large-diameter holes. It suits machinists and maintenance technicians who need a single large bit for use in drill presses or heavy-duty handheld drills. The bit offers a decimal equivalent of 1.1406 for precise hole sizing.

Upgrade from smaller twist drills

This bit replaces the need for step drilling or hole saws when a precise 1-9/64in hole is required in metal. The reduced shank allows it to fit standard 1/2in chucks, removing the constraint of needing a large-capacity chuck. The jump is worth it for repetitive production work where the 3in flute length and 6in overall length provide the reach and chip clearance that shorter bits cannot deliver. It is not suited for wood-only drilling or for users who need a full set of incremental sizes.

How it compares

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

Price $36.99
Pricier than about 59% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameDrill America
Product typeDrill Accessories

Questions about this item

Will the 1/2in reduced shank fit a standard 1/2in drill chuck?

Yes, the 1/2in reduced shank is designed to fit any standard 1/2in drill chuck for secure mounting.

What is the correct way to install this Silver and Deming bit to avoid slippage?

Insert the reduced shank fully into the chuck and tighten all three jaws evenly on the flat surfaces to prevent the bit from spinning under load.

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