Helical Solutions 33752 Corner Radius End Mill 1 in 4 Flute

Product Description

The HELICAL SOLUTIONS 33752 is a solid carbide corner radius end mill engineered for aggressive roughing in steel and cast iron applications. It runs a 1 inch cutting diameter with a 0.03 inch corner radius and a 4.25 inch length of cut, giving machinists the reach needed for deep-pocket and side-milling operations. The chipbreaker geometry on each of the four flutes breaks chips into manageable pieces, reducing heat buildup and tool deflection during high-material-removal passes. An APLUS PVD coating provides a hard, low-friction surface that extends tool life in ferrous materials. Variable pitch flute spacing reduces harmonic chatter, making this cutter well suited for dynamic milling toolpaths and high-speed roughing strategies.

This end mill is intended for use in CNC machining centers handling low-alloy steel, medium alloy steel, tool steel, and cast iron. It fits applications where a long-reach rougher with a corner radius is required to protect part edges and reduce stress concentrations at floor-to-wall transitions. The 7 inch overall length and 1 inch straight-cylindrical shank make it compatible with standard milling chucks, hydraulic holders, and shrink-fit toolholders rated for high precision. Single-end, right-hand cutting, centercutting design supports both plunge entry and full peripheral engagement cuts.

Key Features

• Chipbreaker geometry on all four flutes for controlled chip formation in tough ferrous materials
• Variable pitch flute spacing reduces chatter during high-feed and dynamic roughing passes
• APLUS PVD coating for extended tool life in steel and cast iron
• 0.03 inch corner radius protects workpiece edges and reduces stress risers at pocket corners
• Centercutting design allows direct plunge entry without a pre-drilled pilot hole
• Long-reach configuration with 4.25 inch length of cut for deep-pocket operations

Compatibility

Designed for use with high precision toolholders. Primary workpiece materials include low-alloy steel, medium alloy steel, tool steel, and cast iron (ISO material codes P and K). Series HSVR-C-4.

Installation Notes

This tool should be installed by a qualified machinist or CNC programmer familiar with carbide end mill handling and speeds-and-feeds selection for ferrous materials. Ensure the toolholder is clean and free of runout before seating the shank; maximum TIR for this cutter is 0.0005 inches. Verify spindle direction is set to right-hand rotation before engaging the cut. Do not exceed the tool manufacturer's recommended axial and radial depth-of-cut parameters for the target material to avoid premature edge chipping.