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Chicago-Latrobe 53139 39/64 inch 118 degree taper shank drill bit tan finish

Chicago-Latrobe

Chicago-Latrobe 53139 39/64 in 118 Degree Taper Shank Drill

SKU CH-76AA-XHF7Y

A 39/64 in high-speed steel taper shank drill bit with a 118-degree conventional point and black oxide finish

  • Product typeDrill Bits
  • Color and finishTan
  • 39/64 inch diameter drills large holes precisely
  • 118 degree point angle centres quickly in general materials
  • High-speed steel construction resists wear during repeated use
  • Black oxide finish reduces friction and chip welding
  • Taper shank design locks securely into machine spindles

Chicago-Latrobe 53139 Taper Shank Drill

This Chicago-Latrobe 53139 is a high-speed steel drill bit with a taper shank for machine mounting. It suits maintenance technicians and metalworkers who need a general-purpose bit for drilling steel and cast iron. The 118-degree conventional point provides reliable centring without a pilot hole. It is not for buyers who require a straight shank for hand-held drill chucks.

Black Oxide Finish and Morse Taper Mount

The black oxide finish adds corrosion resistance and helps retain cutting fluid during operation. A Morse taper shank locks directly into a machine spindle or sleeve, delivering positive drive without slippage. This mounting method suits drill presses and lathes but will not fit a standard three-jaw chuck without an adaptor sleeve.

High Speed Steel Thermals and Power Draw

High speed steel construction maintains hardness at the temperatures generated when drilling ferrous metals at conventional speeds. The 118-degree point geometry distributes cutting forces evenly, reducing vibration and audible chatter in rigid set-ups. Power consumption follows the machine spindle load and the workpiece material rather than the bit itself.

How it compares

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

Price $33.99
Pricier than about 56% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits
Color and finishTan

Questions about this item

What taper shank standard does the 53139 drill bit use?

It uses a Morse taper shank that fits standard Morse taper sockets and machine spindles.

What chuck or holder diameter is needed for the 39/64 in drill body?

The drill body measures 39/64 inch, so a holder or sleeve with at least that bore is required.

How is the taper shank seated correctly in the machine spindle?

Insert the shank fully into the Morse taper socket, then give a firm twist to lock the taper before tightening any drawbar or lock.

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