Chicago-latrobe 50364 Taper Length Drill Bit 0.0225 in Hss

Product Description

The CHICAGO-LATROBE 50364 is a taper length drill bit designed for precision drilling in metalworking and machining applications. Built from high speed steel with a coated finish, this bit features a 118-degree standard point angle and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation at the cutting tip. The straight shank measures 0.0225 inches in diameter, and the overall length is 1.5 inches with a flute length of 0.3125 inches. Right-hand spiral fluting promotes smooth cutting action. This is a general purpose bit suited for use by machinists, toolroom technicians, and maintenance professionals working with small-diameter hole applications.

This bit is sized as wire gauge number 74 (0.0225 inches) and is part of the CHICAGO-LATROBE Series 120 taper length line. It is engineered for drilling into alloy steel, carbon steel, and cast iron. The taper length design provides added rigidity compared to jobber-length bits when drilling in deeper setups or in confined fixtures. This size range sees frequent use in precision machining, instrument work, and maintenance drilling where tight tolerances are required. Diameter tolerance is held to +0.0000 to -0.0005 inches for accurate, repeatable hole sizing.

Key Features

• Wire gauge size: number 74 (0.0225 inches decimal equivalent)
• 118-degree standard point angle with web-thinned tapered web for reduced entry thrust
• High speed steel construction with coated finish for improved wear resistance
• Right-hand cut with regular spiral fluting for efficient chip removal
• Straight shank, non-threaded — fits standard drill chucks and collets
• Diameter tolerance held to +0.0000 to -0.0005 inches for precision hole quality

Compatibility

Designed as a general purpose taper length drill bit for use in alloy steel, carbon steel, and cast iron. Compatible with standard drill press chucks, CNC machine tool spindles, and hand-held drill drivers that accept straight shank tooling at 0.0225 inches shank diameter.

Installation Notes

Secure the straight shank firmly in a properly sized chuck or collet before operation and verify runout is within acceptable limits for the application. Use cutting fluid appropriate for the workpiece material to extend tool life and maintain hole quality. Ensure the workpiece is clamped securely before drilling to prevent movement at this small bit diameter, which is susceptible to breakage under lateral load. Service and tooling changes should follow the machine tool manufacturer guidelines and applicable shop safety procedures.