Sgs 38020 Corner Radius End Mill 1/4 in 4 Flute Carbide

Product Description

The SGS 38020 is a solid carbide corner radius end mill designed for precision milling across a wide range of materials including steel, stainless steel, cast iron, non-ferrous metals, and superalloys including titanium. It features a 1/4 inch mill diameter, a 0.015 inch corner radius, and 4 helical flutes with a medium 30-degree helix angle. The TiN coating improves surface hardness and wear resistance during both roughing and finishing operations. At 2.5 inches overall length with a 3/4 inch length of cut, this single-end tool is sized for tight workspaces and general-purpose CNC and manual milling setups.

This end mill is suited for use in machining centers and manual mills where consistent corner radii are required in ferrous and non-ferrous workpieces. Its micrograin carbide substrate supports cutting in hard secondary materials as well. The straight-cylindrical shank is sized at 1/4 inch to fit standard end mill holders. Right-hand cutting and right-hand flute direction make it compatible with conventional spindle setups found across production and job-shop environments.

Key Features

• 0.015 inch corner radius reduces stress concentration at milled corners and extends tool life
• TiN coating increases surface hardness and reduces friction for improved tool wear resistance
• Micrograin solid carbide substrate supports cutting in steels, cast iron, superalloys, and hard materials
• 4 helical flutes with medium helix angle for balanced chip evacuation in roughing and finishing passes
• Variable index geometry helps reduce chatter during milling operations
• Single-end, centercutting design compatible with standard end mill holders

Compatibility

Designed for use with standard end mill holders. Compatible with primary workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, and superalloys and titanium. Suitable for secondary application in hard materials.

Installation Notes

Installation is performed by machinists and CNC operators using a standard end mill holder sized for 1/4 inch straight-cylindrical shanks. Ensure the spindle is fully stopped and locked before tool changes. Verify runout after seating the tool in the holder before beginning a cut. Follow machine manufacturer torque specifications for set screws or collet nuts.