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Tiny 1/64 inch cobalt drill bit with straw bronze finish and 135 degree split point

Chicago-Latrobe

Chicago-Latrobe 46601 1/64 in 135 Degree Cobalt Jobber Drill Bit

SKU CH-6N4R-G3FZ8

A 1/64 in cobalt jobber drill bit with a 135-degree split point for hard-metal drilling

  • Product typeDrill Bits
  • Main materialHAWA
  • 1/64 in diameter for precision pilot holes
  • 135-degree split point reduces walking on hard surfaces
  • Cobalt steel construction resists heat during high-speed drilling
  • Jobber length provides standard reach for general use
  • Straw bronze finish identifies cobalt material at a glance

Chicago-Latrobe 46601 Cobalt Drill Bit

The Chicago-Latrobe 46601 is a jobber length drill bit manufactured from HAWA cobalt material. It features a 135 degree split point designed for self-centering and reduced thrust. The fractional size is 1/64 inch with a decimal equivalent of .0156. The bit has a straw bronze finish and zero coolant holes.

Suited for hard metal drilling tasks

This bit suits machinists and maintenance technicians drilling into stainless steel, titanium or other tough alloys where cobalt heat resistance is required. The split point helps start holes accurately without a centre punch. Buyers needing larger diameters, coolant-through capability or a full drill set should look at other options.

Verify chuck capacity and material compatibility

Before ordering, confirm your drill chuck can securely grip a 1/64 inch shank. Ensure the workpiece material matches cobalt bit recommendations for best tool life. Check that the 135 degree point angle suits your application requirements. No coolant feed is needed for this solid design.

How it compares

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

Price $3.99
Cheaper than about 96% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits
Size & build
Main materialHAWA

Questions about this item

Will my drill chuck hold a 1/64 in bit securely?

A 1/64 in bit requires a chuck that closes fully to 0.0156 in; most 3/8 in and 1/2 in keyless chucks will grip it, but check the minimum capacity of your specific model.

Can I use this cobalt bit in a standard cordless drill?

Yes, the 135 degree split point reduces walking and works with typical cordless drill speeds; use cutting fluid and light pressure to avoid overheating the small diameter.

How do I know the split point is centred after I start drilling?

The 135 degree split point should self-centre on contact; if the bit walks or the hole is off-centre, the point may be damaged or the drill speed too high.

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