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Silver cylindrical HSS jobber drill bit split point TiN coated 53885

Chicago-Latrobe

Chicago-Latrobe Jobber Drill Bit R HSS 53885

SKU CH-X8BY-PGTNJ

High-speed steel jobber drill bit, size R with 135-degree split point and TiN coating for .3390-inch holes

  • Product typeDrill Accessories
  • Main materialHAWA
  • Split-point tip reduces walking on hard materials
  • 135° point angle centres the bit for accurate starts
  • High-speed steel with TiN coating resists wear and heat
  • Decimal size .3390 matches letter R for precise hole diameter

Jobber Drill Bit R HSS 53885

This Chicago-Latrobe jobber drill bit is made from high-speed steel with a TiN coating. It features a 135-degree split point for accurate starting and reduced walking. The decimal equivalent is .3390 inch. It suits professional mechanics and metalworkers needing reliable hole-making in steel and alloys.

Upgrade from worn or standard bits

Replaces dull or uncoated jobber bits that wander on hard materials. The split-point geometry and TiN layer extend cutting life in repetitive drilling. The jump is worth it when precision starts matter more than lowest cost per bit.

How it compares

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

Price $10.99
Cheaper than about 86% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameChicago-Latrobe
Product typeDrill Accessories
Size & build
Main materialHAWA

Questions about this item

What chuck size is required for the 0.3390 inch shank on this jobber drill bit?

A standard three-jaw chuck that opens to at least 0.3390 inches will hold the straight shank securely.

How should the 135 degree split point be started to avoid walking on hard steel?

Centre-punch the exact hole location, then apply steady pressure while keeping the drill perpendicular so the split point engages immediately.

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