Sgs 42731 Corner Radius End Mill 12mm 4 Flute Carbide

Product Description

The SGS 42731 is a solid carbide corner radius end mill designed for demanding metal removal applications in steel, stainless steel, cast iron, superalloys, and titanium. It features a 12 mm cutting diameter, a 2.50 mm (0.0984 inch) corner radius, and four helical flutes with a variable helix and variable index geometry. The TX coating enhances surface hardness and heat resistance for extended tool life at elevated cutting speeds. At 83 mm overall length with a 26 mm length of cut, this single-end tool suits both roughing and finishing operations in production machining environments. Licensed machinists and CNC operators working in job shops or manufacturing cells are the primary users.

This end mill is built for cutting steel, stainless steel, cast iron, superalloys, and titanium, covering ISO material codes P, M, K, and S as primary workpiece materials, with hard materials (code H) as a secondary application. The extended reach design, with a 35.99 mm reach length and 11.48 mm neck diameter, allows access to deeper cavities and stepped features without sacrificing rigidity. The Weldon flat shank is sized at 12 mm to seat securely in standard end mill holders, making it compatible with common CNC machining center tooling setups.

Key Features

• Solid carbide construction for rigidity and thermal resistance in hard-material applications
• Variable helix and variable index geometry reduces harmonic vibration and chatter during aggressive cuts
• 2.50 mm corner radius (0.0984 inch) protects corners from chipping and improves surface finish at part radii
• TX coating for increased wear resistance on steel, stainless steel, and superalloy workpieces
• Extended reach with 35.99 mm reach length and reduced neck diameter for deep-cavity access
• Weldon flat shank ensures positive retention in end mill holders during high-torque cuts
• Suitable for both roughing and finishing in a single tool, reducing changeover time

Compatibility

Designed for use with standard end mill holders. Compatible with CNC machining centers running steel, stainless steel, cast iron, superalloys, titanium, and hard materials. Part of the SGS ZPMC series.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool changer is in a safe state before loading or unloading the tool. Seat the Weldon flat shank fully into the holder and torque the set screw to the holder manufacturer specification before engaging a cut. Verify runout at the tool tip with a dial indicator after setup to confirm proper seating and avoid premature edge wear.