Chicago-latrobe 55444 Reduced Shank Drill Bit 11/16 in

Product Description

The CHICAGO-LATROBE 55444 is a reduced shank twist drill bit designed for general-purpose drilling in wood, alloy steel, carbon steel, and cast iron. The full drill diameter measures 11/16 inches (0.6875 inches) while the shank steps down to 1/2 inch, allowing the bit to fit standard 1/2-inch chucks while drilling larger holes. The bit is manufactured from high speed steel with a coated finish for improved wear resistance. The 118-degree standard point angle is suited to a wide range of workpiece materials. With a 2-flute right-hand spiral configuration and a diameter tolerance of +0.0000 to -0.0012 inches, this bit delivers consistent, accurate holes across portable drilling applications.

This bit is built for portable drilling tasks in field and shop environments. It handles primary work in wood and extends to secondary materials including alloy steel, carbon steel, and cast iron, making it a versatile option for HVAC, plumbing, electrical, and general mechanical trades. The reduced shank design is particularly useful when a full-diameter shank would exceed the capacity of a standard 1/2-inch drill chuck. Professionals in light construction, equipment maintenance, and service work will find this bit appropriate for everyday hole-making tasks where a standard-length bit with a stepped shank is preferred.

Key Features

• Reduced shank design: 11/16-inch cutting diameter steps down to a 1/2-inch straight-cylindrical shank
• High speed steel construction for durability across metal, wood, and cast iron workpieces
• 118-degree standard point angle for general-purpose drilling across a wide range of materials
• Right-hand cut with regular spiral fluting and 2 flutes for efficient chip evacuation
• Coated finish for added surface hardness and extended service life
• Diameter tolerance of +0.0000 to -0.0012 inches for consistent hole sizing

Compatibility

Designed as a general-purpose reduced shank drill bit compatible with portable drills and drill presses fitted with a 1/2-inch chuck capacity. Suitable for drilling wood, alloy steel, carbon steel, and cast iron workpieces.

Installation Notes

Insert the 1/2-inch reduced shank fully into the chuck and tighten securely before operation. Always power down or unplug the drill before changing bits. Use appropriate eye protection and secure the workpiece before drilling. This bit does not support coolant-through operation; dry drilling only per manufacturer specification.