Chicago-latrobe 48752 Screw Machine Drill Bit Hss

Product Description

The CHICAGO-LATROBE 48752 is a screw machine length drill bit designed for high-volume drilling in metal fabrication, machining, and mechanical assembly applications. It carries a wire gauge designation of #52, corresponding to a decimal diameter of 0.0635 inches. The bit is manufactured from high speed steel with a bright/uncoated finish and features a standard 118-degree point angle with web thinning for improved penetration and reduced thrust. The straight-cylindrical shank seats securely in standard drill chucks. At 1-11/16 inches overall length, this short-series bit provides added rigidity compared to jobber-length tooling, reducing deflection in close-tolerance drilling operations.

The 48752 is suited for general-purpose drilling in cast iron, non-ferrous metals, and steel across production machining, sheet metal work, and light manufacturing environments. Its screw machine length geometry makes it a preferred choice when a drill press, CNC machine, or turret lathe requires a stiff, compact bit for repetitive small-diameter hole operations. The 11/16-inch flute length accommodates typical hole depths in thin stock and plate materials without chip packing. Each unit is packaged individually and sold in multiples of 12.

Key Features

• Wire size #52 with 0.0635-inch decimal diameter for precise small-hole drilling
• 118-degree standard point angle with web thinning for reduced thrust and easier starting
• High speed steel construction suitable for cast iron, non-ferrous metals, and steel
• Screw machine (stub) length at 1-11/16 inches overall for maximum rigidity and minimal deflection
• Right-hand cut, 2-flute spiral design with parallel web configuration for consistent chip evacuation
• Bright/uncoated finish; diameter tolerance held to +0.0000 to -0.0005 inches per ISO standards

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with standard drill chucks and collets accepting a straight-cylindrical shank in the 0.0635-inch diameter range. Suitable for use in drill presses, CNC machining centers, turret lathes, and hand-held electric drills used in metalworking applications.

Installation Notes

This bit is installed by machinists and metalworking tradespeople using standard toolholding equipment. Ensure the drill chuck or collet is fully tightened and the shank is fully seated before operation. Always secure the workpiece with appropriate fixturing to prevent movement during drilling. Follow applicable shop safety procedures and equipment manufacturer guidelines for spindle speed selection based on material and bit diameter.