Helical Solutions 48125 Corner Radius End Mill 1/4 in 3 Flute

Product Description

The HELICAL SOLUTIONS 48125 is a solid carbide corner radius end mill engineered for aluminum and non-ferrous metal machining. It features a 1/4 inch mill diameter, a 3/4 inch length of cut, and a 0.03 inch corner radius that reduces stress concentration at the cutting edge and extends tool life in high-throughput applications. The three-flute, variable-pitch design suppresses harmonic chatter without sacrificing chip evacuation, making it well-suited for both roughing and finishing passes in a single tool. It is used by CNC machinists and tool-and-die professionals running modern vertical and horizontal machining centers.

This end mill belongs to HELICAL SOLUTIONS Series H40ALV-3, specifically developed for aluminum and non-ferrous metals as a primary workpiece material. Secondary workpiece materials include steel, stainless steel, cast iron, high temperature alloys, and hard materials. The 40-degree high helix geometry promotes aggressive chip lift out of the cut, which is critical when machining soft, gummy aluminum alloys where chip re-cutting causes surface finish degradation and tool wear. It is a single-end, centercutting tool capable of plunge entries and is compatible with high precision toolholders for best runout performance.

Key Features

• Solid carbide construction for rigidity and wear resistance in non-ferrous and ferrous applications
• 0.03 inch corner radius reduces edge chipping and improves surface finish at part corners
• 3-flute variable-pitch design minimizes chatter during both roughing and finishing operations
• 40-degree high helix angle promotes efficient chip evacuation in aluminum
• Centercutting geometry allows direct plunge milling without a pre-drilled entry hole
• Right-hand cut, right-hand flute with straight-cylindrical shank for standard ER and shrink-fit toolholders
• Bright/uncoated finish maintains sharp edge geometry on non-ferrous materials where coatings can cause built-up edge

Compatibility

Designed for use with high precision toolholders. Primary workpiece material is aluminum and non-ferrous metal; secondary workpiece materials include steel, stainless steel, cast iron, high temperature alloys, and hard materials. Part of the HELICAL SOLUTIONS H40ALV-3 series.

Installation Notes

Installation should be performed by a qualified CNC machinist following the toolholder manufacturer torque and runout specifications. Verify maximum TIR does not exceed 0.0003 inches at setup using a dial test indicator before beginning a cut. Ensure the spindle and all axis drives are fully stopped and the machine is in a safe state before changing tooling. Follow shop-specific feeds and speeds guidelines for the workpiece material and depth of cut being applied.