Sgs 42681 Corner Radius End Mill 12mm 5 Flute Altin Carbide

Product Description

The SGS 42681 is a solid carbide corner radius end mill engineered for high-performance milling in demanding materials including steel, stainless steel, cast iron, superalloys, and titanium. It features a 12 mm mill diameter, a 25 mm length of cut, and a 1.00 mm (0.0394 inches) corner radius that reduces stress concentration at the cutting edge and extends tool life in aggressive applications. The five-flute, right-hand helical design with a high helix angle supports both roughing and finishing operations in a single tool. An AlTiN coating, marketed under the Ti-NAMITE-A designation, provides excellent heat resistance and hardness retention at elevated cutting temperatures. This end mill is intended for use by machinists and CNC operators in precision machining environments.

The SGS 42681 is suited for milling steel, stainless steel, cast iron, superalloys, and hard materials in both roughing and finishing passes. With a straight-cylindrical shank and standard length profile, it seats directly in conventional end mill holders for CNC machining centers and manual mills. The variable index geometry helps break up harmonic vibration during aggressive cuts, making it a practical choice for high-material-removal-rate operations where surface finish still matters.

Key Features

• 12 mm mill diameter with 12 mm straight-cylindrical shank, shank tolerance h6
• 1.00 mm corner radius (0.0394 inches) reduces edge chipping and stress risers
• Five flutes with right-hand helical flute direction and high helix angle for efficient chip evacuation
• AlTiN coating (Ti-NAMITE-A) for elevated heat resistance in ferrous and exotic alloy machining
• Variable index geometry reduces vibration and chatter during roughing passes
• Capable of both roughing and finishing cuts in steel, stainless steel, cast iron, superalloys, titanium, and hard materials

Compatibility

Designed for use with standard end mill holders. Primary workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium; secondary application covers hard materials. UNSPSC Code 27112803. Series 55C.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a safe, locked-out state. Seat the shank fully in a clean, undamaged end mill holder and torque the retention mechanism to the holder manufacturer's specification. Inspect the corner radius and cutting edges for chipping before each use. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material.