Sgs 37189 Corner Radius End Mill 3/8 in 5 Flute Altin Carbide

Product Description

The SGS 37189 is a solid carbide corner radius end mill engineered for precision milling in demanding metalworking and machining applications. It features a 3/8 inch cutting diameter, a 3/4 inch length of cut (LOC), and a 0.03 inch corner radius that reduces stress concentrations at the cutting edge and extends tool life. The 5-flute, right-hand spiral design with a variable pitch promotes chip evacuation and dampens harmonics during high-speed cutting passes. An AlTiN coating provides thermal resistance and hardness at elevated cutting temperatures. This tool is used by machinists and CNC operators working in job shops, tool rooms, and production environments.

The SGS 37189 is suited for milling ferrous metals, stainless steels, and high-temperature alloys where edge strength and surface finish are critical. Its regular-length geometry makes it a practical choice for profiling, slotting, and contouring on vertical and horizontal machining centers. The 3/8 inch shank diameter fits standard ER collet chucks and end mill holders common to most CNC mills. The Z5CR series designation identifies it as a 5-flute corner radius tool within the SGS variable-pitch line.

Key Features

• 0.03 inch corner radius reduces edge chipping and improves surface finish
• 5-flute variable-pitch design minimizes chatter at high feed rates
• AlTiN coating improves heat resistance and tool longevity in ferrous materials
• Right-hand cut and right-hand flute spiral for conventional CNC milling setups
• Solid carbide construction provides rigidity and dimensional stability
• 37-degree helix angle promotes smooth chip flow and reduces cutting forces

Compatibility

Designed as a direct-fit replacement for standard 3/8 inch shank end mill holders and ER collet systems on CNC vertical and horizontal machining centers. Part of the SGS Z5CR series.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in an energy-isolated state before changing tooling. Seat the shank fully into the collet or holder to the recommended gauge-line depth and torque the retention nut per the tool holder manufacturer specification. Verify runout with a dial indicator before initiating a cut.