Cleveland C42194 Ball End Mill 0.375 in 2 Flute Hss

Product Description

The CLEVELAND C42194 is a double-end ball end mill designed for precision milling operations in metalworking applications. Built from high speed steel (HSS), it features a 0.375 inch mill diameter, a 0.5625 inch length of cut, and a 30-degree helix angle across 2 spiral flutes. The double-end configuration doubles usable tool life before replacement. With a 3.5 inch overall length and a 0.375 inch shank diameter, it fits standard toolholders common in manual mills and CNC machining centers. The uncoated HSS construction suits finishing passes where sharp edge retention and controlled chip flow matter most. Licensed machinists and tool-and-die technicians are the primary installers of this tooling.

The C42194 is suited for finishing operations on cast iron, non-ferrous metals, and steel. Its right-hand cutting and right-hand flute direction make it compatible with conventional spindle setups. The HD-2B series designation indicates a heavy-duty two-flute geometry, which supports both slotting and peripheral milling in production and job-shop environments. This tool is a regular-length design, appropriate for general-purpose work where extended reach is not required.

Key Features

• Double-end design provides two usable cutting ends, extending tool service life
• 30-degree helix angle promotes smooth chip evacuation during finishing cuts
• High speed steel construction delivers sharp edge retention on ferrous and non-ferrous materials
• Right-hand cut and right-hand flute direction for standard spindle compatibility
• Uncoated finish suitable for applications where re-sharpening is preferred
• HD-2B series geometry balances rigidity and cutting performance in a regular-length profile

Compatibility

Designed for use on cast iron, non-ferrous metals, and steel workpieces. Compatible with standard 3/8 inch toolholders and collets on manual knee mills and CNC machining centers running right-hand spindle rotation.

Installation Notes

This end mill is installed by machinists using a standard collet chuck or end mill holder sized for a 0.375 inch shank. Ensure the machine spindle is fully stopped and the tool is seated to the recommended gauge-line depth before tightening. Verify runout with a dial indicator after installation to protect edge geometry on finishing passes. Follow shop safety procedures and machine tool manufacturer guidelines when changing tooling.