Harvey Tool 74319 Ball End Mill 0.019in 4 Flute Carbide

Product Description

The HARVEY TOOL 74319 is a miniature solid carbide ball end mill designed for high-precision milling in tight geometries and small-feature applications. With a 0.019 inch cutting diameter, a 4-flute configuration, and a 30-degree helix angle, this tool is built for both roughing and finishing passes in a single setup. The uncoated bright finish makes it well-suited for non-ferrous metals where coating adhesion can be a concern. A 0.1250 inch straight-cylindrical shank and 1.5 inch overall length keep the tool rigid and compatible with standard collet toolholders.

This miniature ball end mill is used in CNC milling applications that require fine detail work, small-radius profiling, 3D contouring, and slot milling in restricted areas. Compatible workpiece materials include steel, stainless steel, cast iron, and non-ferrous metals. It is a standard-length tool suited for production and prototype work in precision machining environments, including aerospace, medical device, and mold-and-die shops.

Key Features

• 0.019 inch ball nose diameter for micro-feature and fine-detail milling
• 4-flute helical geometry supports both roughing and finishing in a single tool
• 30-degree helix angle improves chip evacuation and surface finish
• Solid carbide construction delivers rigidity and wear resistance at miniature scale
• Uncoated bright finish for clean cutting in non-ferrous and ferrous materials
• 0.0095 inch nose radius with plus or minus 0.0005 inch diameter tolerance for repeatable accuracy

Compatibility

Designed for use in CNC machining centers with standard 1/8 inch collet or toolholder systems. Suitable for steel, stainless steel, cast iron, and non-ferrous metals per material codes P, M, K, and N. Part of the HARVEY TOOL Miniature End Mills - Ball - Stub and Standard series.

Installation Notes

Installation of miniature end mills should be performed by a qualified CNC machinist or tooling technician. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Use a precision collet sized for the 0.1250 inch shank to minimize runout, as even small amounts of runout can cause premature tool breakage at this diameter. Verify tool projection and reach clearance before beginning a cut.