Chicago-latrobe 48562 Screw Machine Drill Bit 31/32 in Hss

Product Description

The CHICAGO-LATROBE 48562 is a screw machine length drill bit designed for high-production drilling in metal fabrication, machining, and maintenance applications. Manufactured from high speed steel with a coated finish, this 31/32 inch (0.9688 inch) diameter bit features a 118-degree standard point angle and a two-flute spiral design with web thinning for reduced thrust and easier penetration. The straight cylindrical shank seats securely in standard drill chucks. At 5-7/8 inches overall length, the shorter screw machine profile provides added rigidity and reduced runout compared to jobber-length bits, making it well suited for drill press and CNC turret work.

This bit is built for general purpose metal drilling across a range of workpiece materials including cast iron, non-ferrous metals, and steel. The screw machine length format is a standard choice in shop environments where drilling depth is limited or rigidity is prioritized over reach. It fits into production drilling setups, turret lathes, and bench drill presses commonly found in machine shops, fabrication facilities, and industrial maintenance operations. Licensed machinists, tool and die technicians, and maintenance professionals are the primary installers and users of this bit.

Key Features

• 31/32 inch (0.9688 inch) diameter with a diameter tolerance of +0.0000 to -0.0012 inches for close-tolerance work
• 118-degree standard point angle with web-thinned, parallel web configuration for reduced entry thrust
• High speed steel construction with coated finish for improved wear resistance
• Screw machine length (5-7/8 inches overall, 3-7/8 inch flute length) provides greater rigidity than jobber-length bits
• Two-flute spiral design with right hand cut for standard drilling operations
• ISO standards compliance for dimensional consistency

Compatibility

Designed as a general purpose screw machine length drill bit compatible with any standard drill chuck or collet accepting a straight cylindrical shank. Primary workpiece materials include cast iron, non-ferrous metals, and steel. Part of the CHICAGO-LATROBE Series 157 line.

Installation Notes

Installation and use of this drill bit is typically performed by machinists or maintenance technicians operating drill presses, turret lathes, or CNC turret machines. Ensure the machine spindle is fully stopped and locked out before changing bits or adjusting chuck seating. Seat the straight shank fully and evenly in the chuck and verify concentricity before running at speed. Use appropriate cutting fluid for the workpiece material to extend bit life and maintain hole quality.