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Cylindrical black-oxide high-speed steel drill bit, 31/64 inch, 118-degree radial point

Chicago-Latrobe

Chicago-Latrobe 49731 31/64 in 118 Degree Taper Length Drill Bit

SKU CH-F61B-K3V7D

Taper-length drill bit sized 31/64 in with a 118-degree radial point, made from black-oxide high-speed steel for general-purpose drilling

  • Product typeDrill Bits
  • 31/64 in diameter drills precise holes
  • 118-degree point angle centres quickly on contact
  • Radial point geometry improves chip evacuation
  • High-speed steel construction resists heat buildup
  • Black oxide finish reduces friction and wear

Chicago-Latrobe 49731 Taper Length Drill Bit

This Chicago-Latrobe 49731 drill bit is a general-purpose cutting tool manufactured from high-speed steel with a black oxide finish. It is designed for machinists and maintenance technicians who require a longer flute length for deeper hole drilling in metal, wood, or plastic.

118 Degree Radial Point Geometry

The 118-degree radial point angle is a standard geometry suited for a wide range of materials but is not specialised for hard alloys or high-performance drilling. Its taper length design provides extended reach compared to jobber-length bits, though it lacks the rigidity of shorter stub-length alternatives for precision work.

31/64 Inch Diameter Specification

The drill bit diameter is exactly 31/64 inch, which determines the final hole size and tap compatibility for the application. Buyers needing a different fractional size, metric equivalent, or a split-point design for reduced walking must select a different part number.

How it compares

Measured against everything we stock in Power Drills, Drivers & Cutting Bits, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 85% of the 2,412 comparable items (median $81.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits

Questions about this item

Should I choose the 31/64 in size or a different drill bit diameter?

Select the 31/64 in diameter when your project requires that exact hole size; other diameters are separate items.

What does the 118 degree point angle mean when drilling?

The 118 degree point angle is a general-purpose geometry suited for drilling mild steel, aluminium and similar materials in a standard machine.

Does the taper length shank fit a standard drill chuck or a taper socket?

The taper length shank is designed for a Morse taper socket; it will not grip securely in a standard three-jaw drill chuck.

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