Chicago-latrobe 52453 Reduced Shank Drill Bit 53/64 in

Product Description

The CHICAGO-LATROBE 52453 is a reduced shank twist drill bit designed for general-purpose portable drilling in metal, cast iron, and wood. It measures 53/64 inch (0.8281 inch) in diameter with a 1/2 inch Weldon shank, giving it a reduced shank profile that fits standard 1/2 inch chuck equipment while drilling larger bores. The bit is manufactured from high speed steel with a coated finish for extended wear resistance. The 118-degree split point reduces walking on contact and requires no center punch on most materials. Two spiral flutes in a regular helix clear chips efficiently during through-hole drilling operations.

This bit is built for portable drilling applications across residential and light commercial jobsites. Typical use cases include framing, mechanical rough-in, and fabrication work where a 53/64 inch hole is required in alloy steel, carbon steel, cast iron, or wood. The Weldon shank with three flats prevents bit slippage in the chuck under high-torque conditions, making it suitable for use with right-angle drills and heavy-duty portable drill motors. It ships as a single unit and is part of the CHICAGO-LATROBE Series 190F line of reduced shank bits.

Key Features

• 53/64 inch (0.8281 inch) drill diameter with tight tolerance of +0.0000 to -0.0012 inches
• Weldon shank with three flats prevents rotation under load
• 118-degree split point for reduced thrust and self-centering entry
• High speed steel construction handles alloy steel, carbon steel, cast iron, and wood
• Coated finish improves surface hardness and lubricity for longer service life
• Right-hand cut with two spiral flutes for efficient chip evacuation

Compatibility

Designed as a general-purpose replacement or service bit for 1/2 inch Weldon shank tool holders and portable drill applications requiring a 53/64 inch bore diameter in ferrous metals and wood.

Installation Notes

This bit is installed by a machinist, fabricator, or journeyman tradesperson using a portable drill or drill press equipped with a 1/2 inch Weldon shank chuck or holder. Secure all three shank flats fully in the holder before applying power. Always wear appropriate PPE including eye protection and gloves when drilling ferrous materials. Use cutting fluid on steel and cast iron workpieces to extend bit life and manage heat buildup.