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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

  • Product 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.

How it compares

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

Price $17.99
Cheaper than about 68% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product 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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