Cleveland C04569 Drill Bit Letter U 0.368 in Hss 118 Deg

Product Description

The CLEVELAND C04569 is a screw machine length (stub length) drill bit sized to Letter U, equivalent to 0.3680 inches in decimal. Built from high-speed steel (HSS) with a bright/uncoated finish, it features a standard 118-degree split point and a web-thinned, parallel-web geometry that reduces entry thrust and improves chip evacuation. The straight-cylindrical shank measures 0.3680 inches in diameter and 1.3125 inches in length. Overall length is 3.125 inches, making this a compact, rigid tool suited for short-reach drilling operations. It is installed and used by machinists, tool-and-die technicians, and maintenance professionals working in production or repair environments.

This drill bit is designed for general-purpose drilling in alloy steels and aluminum. The short flute length of 1.8125 inches and reduced overall length provide increased rigidity compared to jobber-length bits, making it well suited for drill press work, CNC machining centers, and hand-held drilling applications where chatter and deflection need to be minimized. The two-flute, regular-spiral geometry handles a broad range of metalworking tasks without the need for specialized tooling setups.

Key Features

• Letter U size — 0.3680 inches decimal equivalent for precise hole sizing
• Web-thinned parallel web reduces thrust load and improves point entry
• 118-degree standard point angle for general-purpose metalworking
• Short screw machine length (3.125 inches OAL) adds rigidity and reduces deflection
• High-speed steel construction handles alloy steel and aluminum workpieces
• Right-hand cut with straight-cylindrical shank for universal chuck compatibility
• Meets ASME B94.11M dimensional standards

Compatibility

Designed as a general-purpose screw machine length drill bit for use in standard drill chucks, drill presses, and CNC machining centers that accept straight-cylindrical shanks of 0.3680 inches in diameter. Suitable for drilling alloy steel and aluminum workpieces.

Installation Notes

This drill bit is installed and operated by machinists and metalworking technicians. Secure the shank fully in the chuck before operation and confirm the chuck is tightened and the spindle is locked before making any adjustments. Always match spindle speed to workpiece material and bit diameter per standard machining reference tables. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point geometry is compromised.