Cleveland C04522 Screw Machine Drill Bit Letter I Hss

Product Description

The CLEVELAND C04522 is a screw machine length (stub) drill bit sized to Letter I, measuring 0.2720 inches in diameter. It is manufactured from high-speed steel with a bright, uncoated finish and features a 118-degree standard point angle with web thinning for reduced thrust at entry. The two-flute, right-hand spiral design handles general-purpose drilling in a wide range of workpiece materials. At 2-11/16 inches overall length, the short stub body provides increased rigidity over jobber-length bits, making it well suited for production and screw machine work where runout control and hole accuracy are priorities.

This bit is used in general-purpose metalworking applications including drilling alloy steel and aluminum in machine shop, production, and maintenance environments. The stub length suits turret lathes, screw machines, and drill press work where reduced deflection matters. A straight cylindrical shank fits standard drill chucks without adapters. It conforms to ASME B94.11M, making it compatible with setups that specify ANSI-standard drill geometry.

Key Features

• Letter I size: 0.2720 inches diameter with a tight tolerance of +0.0000 to -0.0010 inches
• High-speed steel construction for general-purpose metal drilling
• 118-degree standard point angle with web thinning to lower entry thrust
• Stub screw machine length (2-11/16 inches OAL) for added rigidity and reduced deflection
• Right-hand cut, two-flute spiral design with parallel web configuration
• Bright, uncoated finish; no coolant-through requirement
• Meets ASME B94.11M standards

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with any standard drill chuck accepting a 0.2720-inch straight cylindrical shank, across drill presses, turret lathes, and CNC and manual screw machines.

Installation Notes

Install in a properly sized drill chuck and tighten securely before operation. Ensure the machine spindle is fully stopped before inserting or removing the bit. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life and maintain hole quality. Inspect the cutting edges and web condition before each use; a worn or chipped point increases thrust and degrades hole tolerance.