Cleveland C04491 Screw Machine Drill Bit 7/32 in Hss

Product Description

The CLEVELAND C04491 is a screw machine length (stub length) drill bit designed for general-purpose drilling in metal fabrication and machining operations. Built from high-speed steel with a bright, uncoated finish, it measures 7/32 inches (0.2188 inches) in diameter with a 118-degree standard point angle and a right-hand cutting direction. The overall length is 2-3/8 inches, making it shorter and more rigid than jobber-length bits. A web-thinned parallel web reduces thrust and improves chip clearance at the cutting edge. This bit is installed and used by machinists, tool-and-die workers, and general maintenance trades in production and repair environments.

This drill bit is suited for drilling alloy steel and aluminum on drill presses, CNC machines, and hand-held power tools where a shorter bit improves rigidity and reduces deflection. Its straight-cylindrical shank seats directly in standard three-jaw chucks without an adapter. The 1-1/4 inch flute length and spiral flute geometry support efficient chip evacuation during short-depth drilling applications. It is part of the Cleveland Series 2120 line of general-purpose screw machine drills.

Key Features

• 7/32 inches (0.2188 inches) diameter with a tolerance of +0.0000 to -0.0007 inches for accurate hole sizing
• 118-degree standard point angle with web-thinned parallel web to reduce entry thrust
• High-speed steel construction handles a wide range of common workpiece materials
• Bright, uncoated finish — compatible with cutting fluids used at the operator's discretion
• Screw machine (stub) length at 2-3/8 inches OAL for maximum rigidity in tight setups
• Right-hand cut, straight-cylindrical shank fits standard chucks without modification
• Meets ASME B94.11M standards for drill bit geometry and dimensional tolerances

Compatibility

Designed as a general-purpose screw machine length drill bit for use in standard drill press, CNC, and hand-held power tool chucks that accept a straight-cylindrical shank. Primary workpiece materials listed by the manufacturer are alloy steel and aluminum.

Installation Notes

Secure the shank fully into the chuck and verify runout before drilling. Power down the machine and lock out energy sources before changing bits or clearing chips. Apply an appropriate cutting fluid for the workpiece material to extend tool life and maintain hole tolerance. Inspect the cutting edge for wear after extended use on hard materials — a dull bit increases thrust and can cause oversized or out-of-round holes.