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Silver and bronze cobalt drill bit 37/64 in with reduced shank

Chicago-Latrobe

Chicago-Latrobe 53437 118 Degree 37/64 in Cobalt Drill Bit

SKU CH-2MFW-T5E17

A 37/64 inch cobalt drill bit with a 118-degree point and reduced half-inch shank for drilling hard metals

  • Product typeDrill Bits
  • Cobalt construction resists heat during heavy drilling
  • 118-degree point angle starts holes without wandering
  • 37/64 inch diameter suits large-hole applications
  • Reduced 1/2 inch shank fits standard drill chucks
  • Straw bronze finish identifies cobalt material grade

Chicago-Latrobe 53437 Cobalt Drill Bit

This Chicago-Latrobe 53437 drill bit is a Silver & Deming style accessory built for power and pneumatic tools. Its cobalt construction targets the machining of tough metals where heat resistance and edge retention matter. The 118 degree point angle supports general-purpose drilling across a range of ferrous and non-ferrous materials. A straw bronze finish helps identify the tool and adds surface lubricity during cutting.

Machinists needing 37/64 in holes

The reduced shank allows this large diameter bit to fit standard 1/2 inch chucks on drill presses and heavy-duty hand drills. It suits maintenance, fabrication and automotive shops that need to enlarge existing holes or drill fresh ones in steel and alloys. Buyers who require a full 1/2 inch or larger shank diameter for their machine spindle should look at something else. Users needing split-point or self-centering geometry for precision starting without a centre punch will not find that feature here.

Fits 1/2 in chucks for large-hole machining

The 1/2 inch reduced shank bridges the gap between the 37/64 in cutting diameter and common tool holders, freeing the operator from needing a specialised large-capacity chuck. Cobalt material handles the higher temperatures generated when drilling deep or through hard stock, reducing the frequency of bit changes. The 118 degree point works with standard cutting fluids and lubricants already present in most workshops. Ensure the workpiece is rigidly clamped to prevent the bit from walking on hard surfaces.

How it compares

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

Price $39.99
Pricier than about 61% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits

Questions about this item

What size drill chuck is needed for the 1/2 reduced shank on this 37/64 in bit?

A drill chuck that opens to at least 1/2 in is required to hold the reduced shank on this 37/64 in cobalt bit.

Will the 118 degree point angle on this cobalt bit work in the same materials as my older high-speed steel bits?

The 118 degree point is a general-purpose angle; the cobalt material adds heat resistance for harder metals while still drilling mild steel and wood like older bits.

How can I confirm the straw/bronze finish is intact after the first few holes?

The straw/bronze surface should show even, golden-brown colour on the flutes; uneven darkening or blue patches mean the bit is overheating.

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