Helical Solutions 10137 Corner Radius End Mill 1/4 in

Product Description

The HELICAL SOLUTIONS 10137 is a solid carbide corner radius end mill designed for high-performance metal removal in demanding machining environments. Built on the HST-RN-3 series platform, it features a 1/4 inch diameter, a 3-flute right-hand spiral geometry, and a 0.50 mm (0.0200 inch) corner radius that reduces stress concentrations at the cutting edge. The APLUS PVD coating extends tool life across a range of ferrous materials. At 4 inches overall length with a 2-1/8 inch reach and a 3/8 inch length of cut, this is a center-cutting, single-end tool suited for profiling, slotting, and finishing operations where edge integrity matters.

This end mill is intended for use in CNC machining centers running steel, cast iron, and titanium workpiece materials. Its coarse pitch, right-hand cutting direction, and extended reach geometry make it well suited for deep-cavity profiling and finish passes in dies, molds, and structural steel components. The straight-cylindrical shank with h6 tolerance is compatible with high-precision toolholders, supporting the tight runout requirements typical of close-tolerance work on alloy steels and tool steels.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard material applications
• APLUS PVD coating rated for low-alloy steel, medium alloy steel, tool steel, cast iron, and titanium
• 0.50 mm corner radius reduces chipping and improves surface finish at part edges
• 3-flute right-hand spiral geometry supports both roughing and finishing material removal
• Extended reach of 2-1/8 inches enables deep-cavity and deep-pocket access
• Center-cutting design allows direct plunge entry without a pre-drilled pilot hole
• Maximum TIR of 0.0005 inch supports precision runout requirements in high-tolerance toolholders

Compatibility

Designed for use with high-precision toolholders. Primary workpiece materials include low-alloy steel, medium alloy steel, tool steel, cast iron, and titanium (material application codes P and K).

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Secure the straight-cylindrical shank in a high-precision toolholder to maintain runout within the rated TIR specification. Confirm spindle and toolholder cleanliness before assembly. Follow machine tool manufacturer guidelines for speeds, feeds, and depth-of-cut parameters appropriate to the workpiece material and machine rigidity.