Helical Solutions 34212 Corner Radius End Mill 3/8 in 5 Flute

Product Description

The HELICAL SOLUTIONS 34212 is a 5-flute, solid carbide corner radius end mill designed for high-performance milling in steel, cast iron, and secondary materials including stainless steel, non-ferrous metals, superalloys, and titanium. It carries a 3/8 inch mill diameter, a 0.50 mm (0.0200 inch) corner radius, and a 1/2 inch length of cut. The Aplus PVD coating extends tool life in demanding ferrous applications. Variable pitch flute spacing reduces harmonic chatter, making this tool effective for both roughing and finishing operations in a single setup. It is intended for use in CNC machining centers with high-precision toolholders.

The 34212 fits production and job-shop CNC milling environments where steel and cast iron are the primary workpiece materials. Its stub-length configuration and straight cylindrical shank make it well-suited for applications requiring rigidity in close-tolerance pockets, slots, and contoured surfaces. The centercutting geometry allows plunge entry. This tool is part of the Helical Solutions HEV-5 series, which is engineered specifically for variable-pitch, high-efficiency milling strategies in ferrous and hard materials.

Key Features

• 5-flute variable-pitch design reduces chatter and supports aggressive material removal rates
• Aplus PVD coating provides elevated wear resistance in steel and cast iron applications
• 0.50 mm corner radius (0.0200 inch) protects cutting edges and improves surface finish at part corners
• Centercutting geometry allows direct plunge milling without a pre-drilled pilot hole
• Right-hand cut, right-hand helical flutes for standard CNC spindle compatibility
• Solid carbide construction delivers rigidity and dimensional stability under high feed rates

Compatibility

Designed for use with high-precision toolholders. Part of the Helical Solutions HEV-5 series. Primary workpiece materials are steel and cast iron; secondary materials include stainless steel, non-ferrous metals, superalloys, and titanium.

Installation Notes

Installation is performed by a CNC machinist or toolroom technician. Secure the shank in a high-precision collet or hydraulic toolholder to maintain runout within the specified TIR maximum of 0.0005 inch. Verify spindle and tool path programming before engaging the workpiece, and confirm that coolant strategy is compatible with this tool, as through-spindle coolant is not supported. Follow shop safety procedures and machine guarding requirements during setup and operation.