Sgs 30515 Square End Mill 1/8 in 3 Flute Solid Carbide

Product Description

The SGS 30515 is a solid carbide square end mill designed for precision milling in a wide range of materials. With a 1/8 inch (0.1250 inch) mill diameter and a 1/2 inch length of cut, this tool is built for tight-tolerance work where rigidity and edge retention matter. The micrograin carbide construction supports the 30-degree helix angle, producing clean chip evacuation and consistent finish quality. Three flutes provide a balance between chip clearance and cutting edge strength, making this tool suitable for both slotting and peripheral milling operations. Licensed machinists and CNC operators install and run this end mill in production and prototype environments.

The SGS 30515 is suited for milling operations on a broad material range, including high-temperature alloys, cast iron, non-ferrous metals, non-metallic materials, steel, and stainless steel, corresponding to workpiece material codes H, K, M, N, P, and S. The straight cylindrical shank (1/8 inch, 0.1250 inch diameter) fits standard collet chucks and end mill holders commonly found on vertical machining centers, CNC routers, and manual knee mills. The single-end, bright uncoated configuration makes it a practical general-purpose choice for shops that prioritize re-sharpening or cost-per-edge economics.

Key Features

• Micrograin solid carbide construction for improved wear resistance and edge retention
• 30-degree right-hand helix with right-hand cutting direction for efficient chip evacuation
• Three spiral flutes optimized for slotting and peripheral milling
• Centercutting design allows plunge entry into the workpiece
• Bright/uncoated finish compatible with a wide range of workpiece materials
• Straight cylindrical shank with tight tolerance (+0.00000 / -0.00032 inch) for secure collet fitment

Compatibility

The SGS 30515 is compatible with workpiece material categories H (high-temperature alloys), K (cast iron), M (stainless steel), N (non-ferrous metals), P (steel), and S (super alloys) as specified by the manufacturer. It fits any collet or end mill holder accepting a 1/8 inch straight shank.

Installation Notes

This end mill is installed by machinists or CNC operators into a compatible collet chuck or end mill holder — always ensure the machine spindle is fully powered down and locked before tool changes. Verify collet size matches the 1/8 inch shank diameter exactly before tightening to prevent runout. Inspect the cutting edges for chips or wear before each use; carbide is brittle and a damaged edge can fracture under load. Follow the machine tool manufacturer and applicable shop safety guidelines for speeds, feeds, and clamping when setting up a new tool.