Cleveland C04487 Screw Machine Drill Bit Wire 4 Hss

Product Description

The CLEVELAND C04487 is a screw machine length (stub length) drill bit designed for high-volume drilling operations where rigidity and precision matter. Sized to wire gauge 4 (0.2090 inches decimal), this bit is manufactured from high-speed steel (HSS) with a bright, uncoated finish and a standard 118-degree point angle. The short overall length of 2-3/8 inches reduces deflection and improves hole accuracy in production drilling environments. It features a two-flute, regular spiral design with a straight-cylindrical shank and a web-thinned tip for easier penetration. Licensed machinists, tool-and-die professionals, and metal fabrication shops are the primary users of this tooling.

The C04487 is suited for general-purpose drilling in alloy steel and aluminum workpieces. Its Series 2120 designation and ASME B94.11M compliance make it a standard choice for CNC machining centers, drill presses, and hand-operated production rigs where stub-length bits are specified. The 1-1/4-inch flute length accommodates typical depth requirements for through-holes and shallow blind holes in sheet metal and structural stock. Right-hand cut geometry pairs with conventional clockwise spindle rotation.

Key Features

• Wire size 4 (0.2090 inches decimal) with a diameter tolerance of +0.0000 to -0.0007 inches for consistent hole sizing
• High-speed steel construction provides heat resistance in general-purpose metal drilling applications
• 118-degree standard point angle with web-thinned tip reduces thrust and improves penetration
• Screw machine (short) length of 2-3/8 inches overall increases rigidity and reduces run-out
• Bright uncoated finish allows easy visual inspection for wear and regrinding
• Meets ASME B94.11M standard for twist drill dimensions and tolerances

Compatibility

Designed as a general-purpose screw machine length drill bit for use in CNC machining centers, drill presses, and production fixtures requiring a straight-cylindrical shank in wire gauge sizing. Primary workpiece materials listed by the manufacturer are alloy steel and aluminum.

Installation Notes

Install this bit into the spindle or chuck with the shank fully seated and the chuck tightened with a chuck key before engaging the drive. Ensure the drill press or machining center spindle is at a complete stop before changing tooling. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life, noting this bit does not have coolant-through capability. Verify spindle speed and feed rate are appropriate for the workpiece material and hole diameter before beginning the cut.