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Silver and Deming drill bit with reduced shank and flatted surfaces

Drill America

Drill America 1-5/32in HSS Silver and Deming Drill Bit

SKU CH-ZDX2-2HPTR

A high-speed steel Silver and Deming drill bit with a 1/2-inch reduced shank and three-flatted design for secure chuck grip

  • Product typeDrill Accessories
  • 1-5/32 inch diameter drills large holes
  • High-speed steel construction resists heat during use
  • 1/2 inch reduced shank fits standard chucks
  • Three-flatted shank prevents slipping in the chuck

1-5/32in HSS Silver and Deming Drill Bit

This Drill America bit is a high-speed steel Silver and Deming drill designed for large-diameter hole making. It features a 1-5/32 inch cutting diameter with a decimal equivalent of 1.1563 inches. The bit has a 1/2 inch reduced shank with three-flatted sides for secure chuck grip. Surface-treated flutes and a 3 inch flute length support chip evacuation in deep holes.

Suited for machinists and maintenance technicians

This bit suits machinists and maintenance technicians drilling large holes in metal stock using standard 1/2 inch chucks. The three-flatted shank prevents slippage under high torque. Users needing a full 1-5/32in shank diameter or a different flute length should look at other options. Builders requiring carbide tips or cobalt alloy construction will need a different tool.

How it compares

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

Price $34.99
Pricier than about 57% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameDrill America
Product typeDrill Accessories

Questions about this item

How do I install the 1-5/32in HSS drill bit with its 1/2 reduced shank and 3-flatted shanks, and what step do people get wrong?

Insert the reduced shank fully into the drill chuck so the three flats seat against the jaws, then tighten securely; the common error is clamping only on the round portion, which lets the bit slip under load.

What maintenance or replacement will the 1-5/32in Silver and Deming drill bit need later?

Resharpen the HSS cutting edges when they dull, and replace the bit if the flutes wear down or the 3-flatted shank becomes rounded, as this affects grip in the chuck.

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