Cleveland C04473 Screw Machine Drill Bit 11 Hss

Product Description

The CLEVELAND C04473 is a screw machine length (stub length) drill bit designed for high-volume drilling in metal fabrication, machining, and general industrial applications. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this bit carries a wire gauge size of 11, which corresponds to 0.1910 inches in decimal. The 118-degree standard point angle provides reliable self-centering on flat and curved stock. The shorter overall length of 2.25 inches increases rigidity and reduces deflection compared to jobber-length bits, making it a preferred choice for drill press and screw machine work where precision and repeatability matter.

This bit is suited for drilling alloy steel, aluminum, and similar workpiece materials in residential shop, production machining, and light industrial environments. Its straight-cylindrical shank fits standard drill chucks without adapters, and the two-flute spiral design clears chips efficiently during through-hole and blind-hole drilling. Technicians and machinists running repeat-hole operations on CNC lathes, automatic screw machines, or bench drill presses will find the shorter flute length and web-thinned geometry beneficial for consistent entry and reduced thrust force requirements.

Key Features

• Wire size 11 (0.1910 inches) straight-cylindrical shank fits standard chucks directly
• High-speed steel construction provides toughness and heat resistance for general-purpose metal drilling
• 118-degree standard point angle for reliable self-centering on common workpiece materials
• Screw machine (short) length at 2.25 inches overall increases rigidity and reduces deflection
• Web-thinned geometry lowers thrust requirements and improves chip evacuation
• Bright, uncoated finish suitable for general-purpose applications in alloy steel and aluminum
• Meets ASME B94.11M dimensional standards for consistent interchangeability

Compatibility

Designed as an OEM-style general-purpose screw machine drill bit compatible with standard drill chucks accepting a 0.1910-inch straight-cylindrical shank. Suitable for drilling alloy steel and aluminum workpieces per manufacturer specification.

Installation Notes

Installation and use should be performed by qualified machinists or tool-and-die technicians familiar with drilling operations and applicable shop safety standards. Secure the workpiece and confirm chuck jaw engagement before beginning any drilling cycle. Power down and de-energize the machine before changing or inspecting drill bits. Do not exceed the recommended RPM range for the workpiece material and bit diameter, and use appropriate cutting fluid when drilling alloy steel to extend tool life.