Helical Solutions 81735 Corner Radius End Mill 1/4in 5 Flute

Product Description

The HELICAL SOLUTIONS 81735 is a 5-flute, solid carbide corner radius end mill designed for high-performance milling in steel, cast iron, stainless steel, non-ferrous metals, superalloys, and titanium. It carries a 0.0150-inch corner radius and a 1/4-inch cutting diameter with a 3/8-inch length of cut, making it well suited for stub-length finishing and roughing passes where rigidity and surface quality both matter. The APLUS PVD coating improves wear resistance and heat dissipation. Variable pitch geometry reduces harmonic chatter during aggressive cuts. Overall length is 2 inches with a 1/4-inch straight cylindrical shank. Weight is 0.046 pounds.

The 81735 fits general machining and production environments where steel and cast iron are the primary workpiece materials. Its centercutting geometry allows plunge entries as well as conventional peripheral milling. The stub flute length favors applications requiring maximum tool stiffness — slotting, profiling, and finishing in tight-tolerance features. Best results are achieved when paired with high-precision toolholders that minimize runout. This tool is part of the HEV-5 series, which targets both roughing and finishing operations in a single tool path strategy.

Key Features

• 0.0150-inch corner radius reduces stress concentrations and improves corner finish
• 5-flute variable-pitch design reduces chatter and increases feed rates
• APLUS PVD coating for extended tool life in ferrous and hard materials
• Centercutting construction permits plunge and ramp entries
• Solid carbide substrate provides rigidity suited to stub-length overhang
• Right-hand cut, right-hand spiral flute direction for standard spindle use

Compatibility

Designed for use with high-precision toolholders. Suitable for milling steel, cast iron, stainless steel, non-ferrous metals, superalloys, and titanium. Part of the HEV-5 series for combined roughing and finishing applications.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Seat the shank fully into a high-precision toolholder and verify runout against the maximum TIR specification before cutting. Confirm spindle direction matches the right-hand cutting geometry before engaging the workpiece. Always follow shop safety protocols and machine builder guidelines when changing tooling.