Helical Solutions 48645 Corner Radius End Mill 3/4 in

Product Description

The HELICAL SOLUTIONS 48645 is a solid carbide corner radius end mill designed for high-efficiency material removal in both roughing and finishing operations. Built to the H40ALV-3 series specification, it features a 0.75 inch mill diameter, a 1.625 inch length of cut, and a 0.190 inch corner radius. The variable index geometry and high 40-degree helix angle work together to reduce chatter and improve chip evacuation at elevated feed rates. Three flutes and a right-hand cutting direction make this a direct-fit tool for high-precision toolholders used in CNC machining centers.

This end mill is engineered primarily for aluminum and other non-ferrous metals, and carries a secondary rating for steel, stainless steel, cast iron, high temperature alloys, and hard materials. It is well suited for shops running general purpose profiling, slotting, and contour work where a tight corner radius tolerance is required. The centercutting design allows plunge entry. Machinists and CNC programmers in job shops, aerospace, and general manufacturing will find this tool applicable to a wide range of workpiece materials and part geometries.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding cuts
• 0.190 inch corner radius with a tight tolerance of -0.0020 to 0.0020 inches for repeatable edge geometry
• Variable index pitch reduces harmonic vibration during aggressive material removal
• High 40-degree helix angle promotes efficient chip flow, especially in aluminum and non-ferrous applications
• Centercutting design supports direct plunge milling without a pre-drilled entry point
• Bright/uncoated finish suited for non-ferrous and aluminum applications where coated tools may cause built-up edge

Compatibility

Designed for use with high-precision toolholders. Primary workpiece material is aluminum and non-ferrous metals; secondary workpiece materials include steel, stainless steel, cast iron, high temperature alloys, and hard materials. Series H40ALV-3.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine fully powered down and spindle locked. Seat the straight-cylindrical shank fully in a high-precision toolholder and verify runout against the 0.0003 inch maximum TIR specification before cutting. Avoid applying side loads beyond the tool's rated geometry, and confirm correct spindle direction - right-hand - before initiating any cut cycle.