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Chicago-Latrobe 53143 43/64 inch 118 degree taper shank drill bit, black oxide finish

Chicago-Latrobe

Chicago-Latrobe 53143 43/64 in 118° Taper Shank Drill Bit

SKU CH-383B-028PY

A 43/64 in high-speed steel taper shank drill bit with a 118-degree conventional point and black oxide finish for general-purpose drilling

  • TypeDrill Bits
  • MaterialHAWA
  • 43/64 inch diameter drills large holes accurately
  • 118-degree point angle centres quickly on contact
  • High-speed steel construction resists heat during drilling
  • Black oxide finish reduces friction and chip welding
  • Taper shank locks securely in machine spindles

Chicago-Latrobe 53143 Taper Shank Drill Bit

This 43/64 in drill bit with a 118 degree point angle is made from high speed steel and features a black oxide finish. It is designed for general purpose drilling in metal and other materials. The taper shank allows direct mounting into compatible machine spindles or sleeves. Machinists and maintenance technicians use it for production and repair work.

Capacity and headroom for 43/64 in holes

The bit drills a precise 43/64 in diameter hole using its conventional 118 degree point geometry. High speed steel construction provides the hardness and heat resistance needed for cutting steel, cast iron and non-ferrous alloys. It runs out when the material hardness exceeds the capability of standard high speed steel or when coolant and speed control are insufficient for the application.

Thermals noise and power draw in normal use

Heat generated during cutting is managed by the high speed steel body and black oxide surface which aids lubricant retention. Noise levels depend on the drilling machine, workpiece clamping and cutting parameters rather than the bit itself. Power draw is determined by the machine spindle drive and the specific feed and speed selected for the material being drilled.

Highlights

  • 43/64 inch diameter drills large holes accurately
  • 118-degree point angle centres quickly on contact
  • High-speed steel construction resists heat during drilling
  • Black oxide finish reduces friction and chip welding
  • Taper shank locks securely in machine spindles

Specifications

BrandCHICAGO-LATROBE
TypeDrill Bits
MaterialHAWA

Questions about this item

Will the 43/64 in taper shank fit my older Morse taper drill press without an adapter?

The 43/64 in drill bit uses a standard taper shank designed to seat directly in a matching Morse taper spindle, so it works with older presses that accept that taper size.

How can I confirm the 118° point angle is cutting correctly after I install the bit?

A properly sharpened 118° conventional point produces short, curled chips and a round, clean hole in steel when run at the recommended speed for high-speed steel.

Does the 53143 come with a protective sleeve or do I need to buy a storage case separately?

The bit ships with a black oxide finish only; no sleeve or case is included, so a separate drill index or pouch is needed for storage.

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