Chicago-latrobe 47364 Jobber Drill Bit 13.8mm Hss Oxide

Product Description

The CHICAGO-LATROBE 47364 is a jobber-length twist drill bit ground from high speed steel with an oxide coating for general-purpose metal drilling. It measures 13.8 mm (0.5433 inches) in diameter and carries a 118-degree standard point angle suited for a wide range of ferrous materials. Overall length is 160 mm (6.299 inches) with a flute length of 108 mm (4.252 inches). The straight-cylindrical shank seats cleanly in keyed or keyless chucks. The tapered web with web-thinned geometry reduces thrust load at the cutting edge, which is a practical advantage when drilling cast iron or mild steel on the shop floor or in the field.

This bit is intended for maintenance, fabrication, and production drilling in cast iron and steel. It fits standard drill presses, handheld corded drills, and magnetic base drills typically used by mechanical contractors, pipe fitters, and industrial maintenance technicians. The regular spiral flute clears chips efficiently in through-hole and blind-hole applications. Conformance to DIN 338 means the bit meets established dimensional and tolerance standards recognized across North American and European trade work.

Key Features

• 13.8 mm (0.5433 inches) diameter ground to DIN 338 tolerances, -0.0012 to 0.0000 inches
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• High speed steel construction with oxide finish for corrosion resistance and lubricity
• Right-hand cut, regular spiral flute with 2 flutes for efficient chip evacuation
• Straight-cylindrical shank at 0.5433 inches diameter fits standard drill chucks without adapters
• Series 150 general-purpose grade rated for cast iron and steel workpieces

Compatibility

Designed as a general-purpose jobber-length drill bit suitable for drilling cast iron and steel in standard keyed or keyless drill chucks that accept a straight-cylindrical shank of 0.5433 inches diameter.

Installation Notes

This bit is installed by a machinist, millwright, or mechanical technician using a drill press, hand drill, or magnetic base drill. Secure the shank fully in the chuck and verify runout before drilling. Use appropriate cutting fluid or coolant when drilling steel to extend tool life, even though this bit does not support coolant-through delivery. Inspect the cutting edges for wear before each use and replace the bit if the point is chipped or the cutting lips are uneven.