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Drill America silver and deming drill bit 1-21/64 inch reduced shank HSS

Drill America

Drill America HSS Silver and Deming Drill Bit 1-21/64in 1/2in Reduced Shank

SKU CH-T7TX-BJ4N1

1-21/64 inch HSS drill bit with 1/2 inch reduced shank for large-hole drilling in metal

  • TypeDrill Accessories
  • Large 1-21/64" diameter bores wide holes in thick material
  • HSS construction resists heat and wear during heavy drilling
  • Reduced 1/2" shank fits standard drill chucks securely
  • Silver & Deming design handles deep cuts with 3" flute length

Drill America 1-21/64in HSS Reduced Shank Bit

This high-speed steel Silver and Deming drill bit is built for general-purpose drilling in metal, wood and plastic. The 1/2in reduced shank allows it to fit standard three-jaw chucks on drill presses and large hand drills. It suits maintenance technicians and fabricators who need a single large-diameter hole without switching to a taper-shank machine.

1-21/64in diameter with 3in flute and 6in overall

The cutting diameter is 1-21/64in (1.3281in decimal equivalent) with a 3in flute length and 6in overall length. Surface-treated flutes improve chip evacuation and reduce heat buildup during extended cuts. Buyers who need a smaller step size, a longer reach or a Morse taper shank will need a different bit.

Highlights

  • Large 1-21/64" diameter bores wide holes in thick material
  • HSS construction resists heat and wear during heavy drilling
  • Reduced 1/2" shank fits standard drill chucks securely
  • Silver & Deming design handles deep cuts with 3" flute length

Specifications

BrandDrill America
TypeDrill Accessories

Questions about this item

What does the 1.3281 inch diameter mean when I use this bit in my drill press?

The 1.3281 inch diameter produces a hole of that exact size in metal or wood, matching the 1-21/64 inch fractional specification for the Silver and Deming bit.

How does the 1/2 inch reduced shank limit what chucks I can use?

The 1/2 inch reduced shank fits any drill chuck with a 1/2 inch or larger capacity, letting you run this large-diameter bit in standard 1/2 inch chucks.

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