Chicago-latrobe 52454 Reduced Shank Drill Bit 27/32 in

Product Description

The CHICAGO-LATROBE 52454 is a reduced shank twist drill bit designed for portable drilling applications in metal, cast iron, and wood. The bit measures 27/32 inches (0.8438 inches decimal) in cutting diameter with a 1/2 inch Weldon shank, allowing it to fit standard 1/2 inch chucks while drilling larger-diameter holes. Manufactured from high speed steel with a coated finish, the 52454 features a 118-degree split point for accurate starting and reduced walking on entry. Overall length is 6 inches with a 3-1/8 inch flute length. Right-hand spiral flutes clear chips efficiently during through-hole and blind-hole drilling.

The 52454 is suited for portable drilling in general-purpose industrial and trade environments. Its reduced shank design allows a larger cutting diameter to be driven by a common 1/2 inch drill or drill press without requiring a larger chuck. Typical applications include drilling through alloy steel, carbon steel, cast iron, and wood. The Weldon flat shank with three flats resists bit slippage under torque, making it practical for high-feed portable drilling where bit pullout is a concern.

Key Features

• 27/32 inch (0.8438 inch) cutting diameter with 1/2 inch reduced Weldon shank fits standard chucks
• 118-degree split point promotes accurate hole entry and reduces drill walking
• High speed steel construction handles steel, cast iron, and wood at general-purpose cutting speeds
• Three-flat Weldon shank prevents rotational slippage under load
• Coated finish for added wear resistance
• Right-hand spiral flutes with regular helix for efficient chip evacuation

Compatibility

Designed as a general-purpose reduced shank drill bit compatible with 1/2 inch keyed or keyless drill chucks and drill press spindles. Suitable for use on alloy steel, carbon steel, cast iron, and wood workpieces per Series 190F specifications.

Installation Notes

Installation is performed by machinists, toolroom technicians, or experienced tradespeople using a 1/2 inch drill press or portable drill. Secure the Weldon shank fully into the chuck, tightening against the flats to prevent pullout. Always wear appropriate eye protection and secure the workpiece before drilling. Verify spindle speed is appropriate for the workpiece material and bit diameter before operation.