Cleveland C04459 Screw Machine Drill Bit 11/64 Hss

Product Description

The CLEVELAND C04459 is a screw machine length drill bit designed for high-volume, short-reach drilling in metal fabrication, machining, and mechanical trade work. Built from high-speed steel with a bright, uncoated finish, this bit features a 118-degree standard point angle and a right-hand spiral flute configuration. The short overall length of 2.125 inches makes it well suited for drill press and CNC turret applications where reduced overhang and increased rigidity are required. Diameter is 11/64 inches (0.1719 inches decimal), with a straight cylindrical shank of equal diameter for positive chuck engagement.

This bit is used in production and jobsite applications where short-length tooling reduces deflection and improves hole accuracy. Primary workpiece materials include alloy steel and aluminum. The web-thinned, parallel-web construction reduces thrust force at the cutting tip and extends tool life under repeated use. It is a general-purpose grade bit conforming to ASME B94.11M and ANSI specification, making it a standard choice for machinists, millwrights, and mechanical contractors.

Key Features

• 11/64 inch (0.1719 inch) diameter with tight tolerance of +0.0000 to -0.0007 inches
• 118-degree standard point angle with web-thinned tip for reduced entry thrust
• High-speed steel construction for general-purpose metal drilling
• Bright, uncoated finish for compatibility with a wide range of cutting fluids
• Right-hand cut with 2-flute regular spiral for efficient chip evacuation
• Straight cylindrical shank at 0.1719 inches for standard chuck compatibility
• Conforms to ASME B94.11M and ANSI standards

Compatibility

Designed as a general-purpose screw machine length drill bit suited for use in drill presses, CNC turrets, and hand-held drill equipment where a straight cylindrical shank and short-length format are required. Intended for drilling alloy steel and aluminum workpieces.

Installation Notes

Installation and use should be performed by qualified machinists or mechanical trade professionals. Secure the shank fully in a properly sized chuck before operation and confirm the workpiece is clamped or fixtured to prevent movement. Apply appropriate cutting fluid for the workpiece material to manage heat and extend bit life. Inspect the cutting edges for wear or chipping before each use and replace when the point geometry is compromised.