Helical Solutions 48276 Corner Radius End Mill 3/8 in Solid Carbide

Product Description

The HELICAL SOLUTIONS 48276 is a 3-flute, solid carbide corner radius end mill designed for high-performance milling across a wide range of materials. Built to the H40ALV-3 series specification, it features a 3/8-inch diameter, a 1-inch length of cut, and a Zplus PVD coating optimized for aluminum and non-ferrous metals as the primary workpiece material. The 0.060-inch corner radius reduces stress concentration at the cutting edge, extending tool life in both roughing and finishing operations. Variable pitch geometry and a high helix style work together to reduce harmonic vibration and improve chip evacuation in demanding cuts.

This end mill is suited for precision machining environments where both surface finish and material removal rate matter. It handles aluminum and non-ferrous metals as primary applications and is rated for secondary use in steel, stainless steel, cast iron, high-temperature alloys, and hard materials. The single-end, centercutting design allows plunge entry and full slot cuts. It is intended for use with high-precision toolholders to maintain runout within the stated TIR of 0.0003 inches.

Key Features

• Zplus PVD coating rated for aluminum and non-ferrous primary applications with secondary capability in steel, stainless, cast iron, high-temp alloys, and hard materials
• 0.060-inch corner radius with a tight tolerance of -0.002 to +0.002 inches for consistent edge geometry
• 3-flute, variable pitch design reduces chatter and vibration during aggressive cuts
• Centercutting geometry enables direct plunge entry without pre-drilling
• High helix style promotes efficient chip evacuation, critical in aluminum and gummy materials
• Solid carbide construction with h6 shank and mill diameter tolerances for accurate toolholder fit

Compatibility

Designed for use with high-precision toolholders. Mill diameter and shank diameter both hold h6 tolerance at 3/8 inch, making this end mill compatible with collet chucks, hydraulic chucks, and shrink-fit holders machined to that standard. Refer to toolholder manufacturer specifications to confirm bore tolerance match.

Installation Notes

Installation is performed by a machinist or toolroom technician. Seat the straight-cylindrical shank fully into a high-precision toolholder and torque the retention mechanism to the toolholder manufacturer specification before spindle operation. Verify runout at the cutting edge does not exceed the stated TIR maximum of 0.0003 inches using a dial indicator before production cuts. Do not exceed the rated length of cut or apply side loads beyond the tool geometry limits, as solid carbide end mills are brittle and can fracture under excessive deflection.