Cleveland C04374 Screw Machine Drill Bit Wire 53 Hss

Product Description

The CLEVELAND C04374 is a screw machine length (stub length) drill bit designed for general-purpose drilling in production and machine shop environments. Built from high-speed steel (HSS) with a bright/uncoated finish, it runs a standard 118-degree point angle and a web-thinned geometry that reduces thrust and improves chip evacuation at entry. The wire gauge size is No. 53, with a decimal diameter of 0.0595 inches and a total overall length of 1.625 inches. The shorter body length relative to jobber bits increases rigidity, making this bit well suited for close-tolerance work where deflection must be minimized. Typical installers include machinists, tool and die technicians, and production drilling operators.

This bit is used in bench drill presses, CNC drilling operations, and manual machine setups where short, rigid tooling is required. It is appropriate for drilling alloy steels and aluminum in both light and medium production cycles. The straight-cylindrical shank fits standard collets and drill chucks without modification. The two-flute spiral design with a regular helix handles a broad range of workpiece materials under general-purpose cutting conditions. This bit conforms to ASME B94.11M and meets ANSI specification designations, making it compatible with standard tooling programs.

Key Features

• Wire size No. 53 with 0.0595-inch decimal diameter and tight tolerance of +0.0000 to -0.0005 inches
• High-speed steel construction rated for general-purpose cutting in alloy steel and aluminum
• 118-degree standard point angle with web-thinned geometry for reduced thrust at entry
• Screw machine (short) length — 1.625 inches overall — for maximum rigidity in close-tolerance drilling
• Bright/uncoated finish suitable for use with or without cutting fluid
• Straight-cylindrical shank, 0.0595 inches diameter, fits standard drill chucks and collets
• Conforms to ASME B94.11M and ANSI specifications

Compatibility

Designed as a general-purpose screw machine length drill bit for use in standard drill chucks and collets accepting a straight-cylindrical shank. Suitable for alloy steel and aluminum workpieces in production drilling applications.

Installation Notes

This bit is installed and serviced by machinists and tool operators. Secure the shank fully in the chuck or collet before operation and verify runout before beginning a drilling cycle. Ensure the workpiece is clamped securely to prevent walking, especially at small diameters. Follow applicable shop safety procedures and machine manufacturer guidelines when setting spindle speed and feed rate for the workpiece material.