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Small bright uncoated carbide drill bit 1/16 in 140 degree point straight flutes

Chicago-Latrobe

Chicago-Latrobe 78588 1/16 in 140° solid carbide straight flute drill

SKU CH-G6G6-FVGAA

1/16 in solid carbide straight flute drill with 140° point for precise holes

  • Product typeCutting Tools
  • 1/16 in precision drilling for fine holes
  • 140° point angle reduces walking on hard materials
  • Solid carbide construction resists wear in abrasive alloys
  • Bright uncoated finish suits non-ferrous machining
  • 5/8 in flute length clears chips in shallow cuts

1/16 in carbide straight-flute drill

The Chicago-Latrobe 78588 is a solid-carbide straight-flute drill bit sized at 1/16 in. It is built for machinists and maintenance technicians who need a rigid, wear-resistant tool for producing accurate small-diameter holes in hardened alloys, stainless steel and other abrasive materials.

Upgrade from high-speed steel drills

Carbide construction replaces conventional high-speed steel bits when longer tool life and tighter hole tolerance are required. The jump is worth it for repetitive production runs or difficult-to-machine workpieces where frequent resharpening of HSS drills would interrupt workflow.

Handles small-diameter precision drilling

The 140-degree four-facet point and 5/8 in flute length give reliable centring and chip evacuation in holes up to the flute depth. The uncoated bright finish performs well in short-chipping materials but offers less heat resistance than coated alternatives in prolonged high-speed cuts.

How it compares

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

Price $16.99
Cheaper than about 70% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeCutting Tools

Questions about this item

What size chuck does the 1/16 in 78588 drill bit fit?

The bit has a 1/16 in diameter shank, matching standard fractional-inch drill chucks that accept 0.0625 in sizes.

How should I start the 140° point on hard material to avoid walking?

Use a centre punch mark and low RPM with steady pressure; the four-facet 140° point self-centres but will skip if the surface is smooth and unmarked.

When does the solid carbide 78588 bit need replacement?

Replace when the cutting edges show chipping, the 5/8 in flute clogs persistently, or hole diameter exceeds tolerance — carbide cannot be resharpened economically.

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