Harvey Tool 936905-C3 Corner Radius End Mill 3mm 4 Flute

Product Description

The HARVEY TOOL 936905-C3 is a miniature solid carbide corner radius end mill designed for precision milling in tight tolerances and small-feature applications. It measures 3 mm (0.1180 inches) in diameter with a 0.01-inch corner radius, a 4.5 mm (0.4688 inches) length of cut, and a 1.5-inch overall length. The four-flute, right-hand helical geometry supports both roughing and finishing operations in a single pass. An AlTiN (aluminum titanium nitride) PVD coating improves heat resistance and tool life when cutting ferrous and hard materials. This is a single-end, straight-cylindrical shank tool with a 1/8-inch shank diameter, built to run in standard toolholders at high speeds in machining center applications.

This end mill is intended for milling steel, stainless steel, cast iron, non-ferrous metals, and composite materials. The stub-length configuration provides increased rigidity compared to standard-reach tools, making it well suited for high-precision contouring, slotting, and profiling of small features where deflection control is critical. It is centercutting, allowing plunge entry. Typical users include CNC machinists and toolroom operators working on dies, molds, medical components, and precision mechanical parts where tight dimensional control is required.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous and hard-material applications
• AlTiN PVD coating extends tool life and supports dry or semi-dry cutting at elevated temperatures
• 0.01-inch corner radius with a tolerance of +0.0010 to -0.0010 inches for consistent edge geometry
• Four right-hand helical flutes with normal pitch support both roughing and finishing material removal
• Centercutting design allows direct plunge entry without pre-drilled pilot holes
• Stub-length geometry maximizes rigidity in small-diameter, high-precision milling setups

Compatibility

Designed for use with standard straight-bore toolholders accepting a 1/8-inch cylindrical shank. Suitable for CNC machining centers running steel, stainless steel, cast iron, non-ferrous metals, and composites. Part of the Harvey Tool Miniature End Mills - Corner Radius - Stub and Standard series.

Installation Notes

Installation is performed by a qualified CNC machinist or toolroom technician. Secure the 1/8-inch shank in a collet or end mill holder to the manufacturer-recommended clamping depth before use. Verify runout at the cutting end before beginning a production cycle, as runout is especially critical at this diameter. Always confirm spindle speed, feed rate, and depth of cut against published cutting data for the specific workpiece material before engaging the cut.