Cleveland C04572 3/8 in Screw Machine Drill Bit Hss

Product Description

The CLEVELAND C04572 is a screw machine length drill bit designed for general-purpose metal drilling in production and maintenance environments. Built from high-speed steel (HSS) with a bright, uncoated finish, this bit features a 118-degree standard point angle and a web-thinned tip that reduces thrust and improves chip evacuation at entry. The 3/8 inch diameter straight-cylindrical shank fits standard drill chucks without adapters. At 3-1/8 inches overall length, the short body length provides added rigidity in tight clearance applications, making it a practical choice for screw machine work, CNC turrets, and drill press operations where stub-style cutting geometry is required.

This bit is suited for drilling alloy steel, aluminum, and similar workpiece materials in both shop and field settings. The 2-flute spiral design with a regular helix and 1-13/16 inch flute length handles chip clearing in moderate-depth holes. The parallel web configuration with web thinning keeps cutting forces manageable across a range of feed rates. Machinists, tool and die technicians, and general maintenance mechanics commonly use screw machine length bits where a jobber-length bit would flex or chatter. The CLEVELAND C04572 is built to ASME B94.11M standards.

Key Features

• 3/8 inch (0.3750 inch) diameter with diameter tolerance of +0.0000 to -0.0010 inches for consistent hole sizing
• 118-degree standard point angle with web-thinned tip for reduced entry thrust
• High-speed steel construction for durability across alloy and aluminum workpieces
• Short screw machine length (3-1/8 inches OAL) adds rigidity in close-clearance setups
• Bright, uncoated finish compatible with standard cutting fluids and coolants
• Right-hand cut, 2-flute spiral design built to ASME B94.11M standards

Compatibility

Designed as a general-purpose screw machine length drill bit suitable for use in standard drill chucks, screw machine spindles, and CNC turret setups accepting a 3/8 inch straight-cylindrical shank. Rated for primary workpiece materials including alloy steel and aluminum.

Installation Notes

Secure the shank fully in the drill chuck or collet before operation and verify runout is within acceptable limits for the application. Always match feed rate and cutting speed to the workpiece material to avoid premature edge wear or work hardening. Use appropriate cutting fluid when drilling alloy steel to extend tool life and maintain hole quality. Inspect the cutting edges and web thinning before each use and replace the bit if chipping or excessive wear is present.