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Bright uncoated solid carbide drill bit 5/64 inch 140 degree point straight flutes

Chicago-Latrobe

Chicago-Latrobe 78589 140° Solid Carbide Straight Flute Drill 5/64 in

SKU CH-9943-AVJM3

Solid carbide drill bit with 140-degree point angle and 11/16 inch flute length for 5/64 inch holes

  • TypeCutting Tools
  • 140° point angle centres the bit accurately on hard materials
  • Solid carbide construction resists wear in abrasive machining
  • Straight flute design clears chips efficiently in shallow holes
  • 5/64 in diameter matches precise fractional-inch specifications
  • Bright uncoated finish suits general-purpose drilling tasks

Chicago-Latrobe 78589 5/64 in Drill Bit

This solid carbide straight flute drill bit measures 5/64 inch with a 140-degree point angle. It features a four-facet point design and a bright uncoated finish. The flute length is 11/16 inch for chip evacuation. It is built for precise hole-making in demanding materials.

Ideal for hardened steel and abrasive alloys.

Machinists drilling hardened steel, cast iron or high-silicon aluminium will benefit from the carbide substrate and 140-degree geometry. The straight flute design suits short-chip materials and rigid setups. Shops needing high feed rates in long-chip materials such as low-carbon steel or copper should consider helical flute alternatives. Handheld drilling without a rigid column increases breakage risk with this brittle tool.

140-degree four-facet point angle centers without

The 140-degree four-facet point is the critical specification; it self-centres accurately and reduces thrust force in hard metals. This geometry eliminates the need for a separate spotting operation in most CNC applications. Verify that your machine tool holder and workpiece clamping provide the rigidity this carbide bit requires.

Highlights

  • 140° point angle centres the bit accurately on hard materials
  • Solid carbide construction resists wear in abrasive machining
  • Straight flute design clears chips efficiently in shallow holes
  • 5/64 in diameter matches precise fractional-inch specifications
  • Bright uncoated finish suits general-purpose drilling tasks

Specifications

BrandCHICAGO-LATROBE
TypeCutting Tools

Questions about this item

How deep can the 11/16 in flute drill before chip evacuation becomes the limiting factor?

The flute length is 11/16 in, so sustained drilling beyond that depth will restrict chip removal and become the first limit under continuous use.

Does the solid carbide 140° point generate noticeable heat or noise during all-day drilling?

Solid carbide runs hotter than high-speed steel; the 140° point and bright finish transfer heat quickly, so expect elevated temperature and typical high-pitched cutting noise during extended operation.

What shank size must my drill chuck accept to hold the 5/64 in bit?

The bit is 5/64 in diameter (0.078125 in decimal), so your chuck must grip that exact shank size.

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