Harvey Tool 34112-C3 Ball End Mill 0.1875 in 4 Flute Altin

Product Description

The HARVEY TOOL 34112-C3 is a solid carbide ball end mill designed for finishing operations in hard materials, steel, stainless steel, and cast iron. The tool features a 0.1875 inch (3/16 inch) diameter, a 1.5 inch length of cut, and a 3.0 inch overall length. Four helical flutes with a variable helix geometry improve chip evacuation and reduce harmonic vibration during cutting. An AlTiN PVD coating provides thermal resistance and extended tool life in demanding ferrous and hard-material applications. This end mill is specified for machinists and CNC operators working in production and job-shop environments.

The 34112-C3 falls within the HARVEY TOOL Miniature End Mills - Ball - Long Flute series. It is suited for finishing passes in molds, dies, and complex contoured workpieces where a long-flute reach and ball-nose profile are required. The long-flute configuration allows access to deeper cavities and side walls compared to standard-length tooling. Right-hand cut and right-hand flute direction make it compatible with conventional CNC machining center spindle rotation. No coolant-through feature; external flood or mist coolant is the standard approach.

Key Features

• 0.1875 inch ball-nose diameter with a 0.0938 inch nose radius for accurate contour finishing
• Variable helix geometry reduces chatter and improves surface finish in hard materials
• AlTiN PVD coating for high heat resistance and extended wear life in ferrous and hard workpiece materials
• 1.5 inch reach length enables deep-cavity and side-wall finishing
• Solid carbide construction provides rigidity and precision at miniature diameters
• Single-end, straight-cylindrical shank fits standard collet and end mill holders

Compatibility

Designed for use with standard 3/16 inch (h6 tolerance) collet chucks and end mill holders on CNC machining centers. Primary workpiece material is hard material (H); secondary workpiece materials include steel, stainless steel, and cast iron.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before loading or changing tooling. Seat the shank fully into the collet or holder to the recommended engagement depth before torquing the nut. Confirm runout with a dial indicator before production to protect the tool and workpiece at this miniature diameter.