Chicago-latrobe 49202 Screw Machine Drill Bit 1/32 in Hss

Product Description

The CHICAGO-LATROBE 49202 is a screw machine length drill bit engineered for high-speed steel cutting in compact, stub-length applications. With a 1/32 inch (0.0313 inch) diameter and a 135-degree split-point angle, it delivers accurate starts without center punching and reduces thrust in hard materials. The two-flute, regular spiral design with a tapered web configuration supports chip evacuation in cast iron and steel. At 1.375 inches overall length, the short body improves rigidity and reduces deflection in drill press, CNC, and screw machine setups. This bit is built to heavy-duty grade and conforms to DIN 1897 and ISO standards.

The 49202 is suited for production drilling in metal fabrication, machine shops, and maintenance environments. Its straight-cylindrical shank fits standard drill chucks without adapters. Primary workpiece materials include cast iron and steel, making it a practical choice for repetitive small-diameter hole operations where bit rigidity and point accuracy are critical. The screw machine length reduces overhang, which is especially useful in tight fixtures or multi-spindle setups where standard-length bits introduce too much flex.

Key Features

• 1/32 inch diameter with tight tolerance of +0.0000 to -0.0005 inches for precise hole sizing
• 135-degree point angle reduces walking and cutting thrust on hard metals
• Screw machine (stub) length at 1.375 inches overall improves rigidity and minimizes deflection
• Two-flute regular spiral with tapered web for efficient chip clearance
• High-speed steel construction with heavy-duty grade rating for demanding production use
• Conforms to DIN 1897 and ISO standards for dimensional consistency

Compatibility

Designed as an OEM-style replacement and production drill bit compatible with standard straight-shank drill chucks; primary workpiece materials are cast iron and steel per Series 159 specifications.

Installation Notes

Install and remove drill bits only with the machine powered down and the spindle fully stopped. Secure the straight-cylindrical shank firmly in a keyed or keyless chuck to the full recommended grip depth before operation. Use appropriate cutting fluid or coolant when drilling steel to extend tool life and maintain dimensional tolerance. Inspect the cutting edges for wear or chipping before each use, as small-diameter bits at 1/32 inch are susceptible to breakage under side load or misalignment.