Cleveland C04401 Screw Machine Drill Bit Wire 43 Hss

Product Description

The CLEVELAND C04401 is a screw machine length drill bit sized to wire gauge 43, with a decimal diameter of 0.0890 inches. Built from high-speed steel with a bright uncoated finish, this bit features a 118-degree standard point angle and a two-flute spiral design. The web-thinned, parallel-web construction reduces entry force on harder materials. Overall length is 1.75 inches, making it a short-length tool suited for close-quarters drilling where a jobber-length bit would not fit. Machinists, tool and die techs, and maintenance mechanics install this bit in drill presses, CNC machines, and hand-held power drills when working in confined setups or drilling through thin stock.

The C04401 is designed for general-purpose drilling in alloy steels and aluminum. Its short flute length of 0.75 inches and straight cylindrical shank diameter of 0.0890 inches suit applications where rigidity and concentricity matter, such as tapping pre-drill operations, pilot holes, and precision through-hole work in sheet metal or machined components. The Series 2120 designation indicates conformance to ASME B94.11M standards for screw machine length drill bits.

Key Features

• Wire size 43 with 0.0890-inch decimal diameter for precision small-hole applications
• High-speed steel construction handles alloy steel and aluminum workpieces under general-purpose cutting conditions
• 118-degree standard point angle with web-thinned geometry reduces thrust and improves self-centering
• Short screw machine length at 1.75 inches overall improves rigidity and minimizes deflection
• Bright uncoated finish allows easy visual wear inspection during service
• Right-hand cut, two-flute spiral design provides efficient chip evacuation in shallow holes

Compatibility

Designed as an OEM-style screw machine length drill bit conforming to ASME B94.11M, suitable for use in standard drill chucks and collets accepting a 0.0890-inch straight cylindrical shank across drill presses, CNC drilling centers, and hand-held power tools.

Installation Notes

A licensed machinist or qualified maintenance mechanic should secure the shank firmly in a compatible chuck or collet before operation, verifying runout is within acceptable limits for the application. Always power down and de-energize the machine before changing tooling. Use appropriate cutting fluid for alloy steel workpieces to extend tool life, and do not exceed the recommended feed rate for small-diameter bits to avoid breakage.