Chicago-latrobe 52489 Reduced Shank Drill Bit 1-25/64 in

Product Description

The CHICAGO-LATROBE 52489 is a reduced shank twist drill bit designed for portable drilling applications in metal, wood, and cast iron. Built from high speed steel with a coated finish, it features a 1-25/64 inch cutting diameter paired with a 1/2 inch Weldon shank, allowing it to run in standard 1/2 inch chuck equipment without requiring a larger spindle. The 118-degree standard point angle provides a versatile, self-centering entry across a broad range of workpiece materials. This bit is suited for trade professionals who need a reliable general-purpose drill in a reduced shank configuration for portable or handheld drilling setups.

The 52489 is built for general-purpose portable drilling across wood, alloy steel, carbon steel, and cast iron workpieces. The Weldon shank with three flats prevents slipping in set-screw style toolholders, making it well suited for field work and production environments where consistent drive engagement matters. The right-hand spiral flute geometry clears chips efficiently during through-hole and blind-hole drilling operations in both stationary and handheld equipment.

Key Features

• 1-25/64 inch cutting diameter with a 1/2 inch reduced Weldon shank for use in standard 1/2 inch chuck equipment
• 118-degree standard point angle for general-purpose entry on steel, cast iron, and wood
• High speed steel construction provides heat and wear resistance during extended drilling cycles
• Coated finish helps reduce friction and extend cutting life
• Three-flat Weldon shank prevents rotational slippage in set-screw toolholders
• Right-hand cut with regular spiral flutes for efficient chip evacuation

Compatibility

Designed as a general-purpose reduced shank drill bit compatible with 1/2 inch Weldon-style toolholders and standard 1/2 inch chuck equipment used in portable drilling applications on wood, alloy steel, carbon steel, and cast iron workpieces.

Installation Notes

Installation and use of this drill bit is typically performed by machinists, maintenance technicians, or skilled tradespeople using portable or stationary drilling equipment. Secure the Weldon shank fully in the toolholder and tighten all set screws against the flats before operation to prevent shank pullout. Ensure the drill press or handheld tool is powered down and isolated before changing bits. Do not use this bit without adequate chip clearance or at feed rates that cause excessive heat buildup, as this can reduce cutting edge life.