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Cobalt jobber drill bit, 5/32 inch, straw bronze finish, split point

Chicago-Latrobe

Chicago-Latrobe 47710 135 Degree Cobalt Jobber Length Drill Bit 5/32 in

SKU CH-RXJ5-XS3ZK

A 5/32 inch cobalt jobber drill bit with a 135 degree split point for hard-metal drilling

  • Product typeDrill Bits
  • Main materialHAWA
  • 135-degree split point starts on contact without walking
  • Cobalt steel resists heat for longer edge life
  • Jobber length reaches deep holes in one pass
  • 5/32-inch fractional size matches common fasteners
  • 1563-inch decimal equivalent simplifies metric conversion

Chicago-Latrobe 47710 5/32 in Cobalt Drill Bit

This Chicago-Latrobe 47710 drill bit is a jobber length tool made from cobalt steel for drilling hard metals. It suits mechanics and metalworkers who need a durable bit for stainless steel or alloy work. The 5/32 inch size handles common fastener pilot holes. The 135 degree split point reduces walking on hard surfaces.

135 Degree Split Point for Hard Metal Drilling

The 135 degree split point centres the bit without a centre punch, saving setup time on hardened materials. Cobalt construction resists heat buildup during extended drilling cycles. The jobber length fits standard drill chucks and quick-change adapters. No coolant holes mean dry operation or external lubrication is used.

Upgrade from High-Speed Steel Bits

This bit replaces standard high-speed steel drills that dull quickly in stainless steel or titanium. The jump is worth it when drilling work-hardening alloys or abrasive materials where HSS fails. It is not for wood, plastic or soft aluminium where standard bits cut faster. Buyers needing coolant-through capability should select a different design.

How it compares

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

Price $1.99
Cheaper than about 98% 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

How does the 135-degree split point hold up under sustained drilling?

The 135-degree split point is designed to self-centre and reduce walking, maintaining accuracy during extended use in metal.

What heat or noise should I expect when running this bit all day?

Cobalt steel dissipates heat better than standard high-speed steel, helping the bit stay cooler during prolonged drilling sessions.

What shank size or chuck must I already have for this 5/32-inch bit?

The jobber-length bit has a straight shank matching its 5/32-inch diameter, so a standard three-jaw chuck that opens to at least that size is required.

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