Chicago-latrobe 48537 Screw Machine Drill Bit 37/64 in

Product Description

The CHICAGO-LATROBE 48537 is a screw machine length drill bit designed for general-purpose hole-making in metalworking and mechanical applications. Built from high speed steel with a coated finish, this bit features a 37/64 inch (0.5781 inch) diameter, a standard 118-degree split point, and a right-hand spiral flute configuration. The shorter screw machine length format improves rigidity and reduces deflection compared to jobber-length bits, making it well suited for production drilling and repetitive close-tolerance work. It is installed and used by machinists, pipefitters, HVAC technicians, and maintenance tradespeople who need consistent, accurate results across a range of metal workpiece materials.

This bit is rated for use on cast iron, non-ferrous metals, and steel. The screw machine length profile is a common choice for drill press, turret lathe, and CNC applications where shorter flute-to-overall-length ratios improve chip evacuation and bit stability. The web-thinned tip reduces thrust force on entry and helps center the bit without a pilot hole on most applications. The straight cylindrical shank fits standard drill chucks without modification.

Key Features

• 37/64 inch (0.5781 inch) diameter with a tight tolerance of +0.0000 to -0.0012 inches
• 118-degree standard drill point angle with web thinning for reduced entry thrust
• High speed steel construction with coated finish for extended tool life
• Right-hand cut with regular spiral flute for efficient chip removal
• Screw machine length format at 4.125 inches overall for improved rigidity
• Straight cylindrical shank for compatibility with standard drill chucks

Compatibility

Designed for drilling cast iron, non-ferrous metal, and steel workpieces. Fits standard drill chucks accepting a straight cylindrical shank at 37/64 inch diameter. Part of the CHICAGO-LATROBE Series 157 general-purpose screw machine length drill bit line.

Installation Notes

This drill bit is installed by machinists, maintenance technicians, and trade professionals using drill presses, lathes, or handheld power drills. Secure the straight shank firmly in a properly sized chuck before operation. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Use appropriate cutting fluid or coolant when drilling steel or cast iron to extend bit life, noting that this bit does not support internal coolant delivery.