Sgs 39078 Ball End Mill 0.125 in 4 Flute Solid Carbide

Product Description

The SGS 39078 is a solid carbide ball end mill designed for precision milling operations across a wide range of workpiece materials. Built to Series 1B standards, it features a 0.125 inch diameter with a 0.375 inch length of cut and a 1.5 inch overall length. The four-flute, right-hand spiral geometry combined with a 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. A TiCN coating adds surface hardness and thermal resistance, extending tool life in demanding applications. The micrograin carbide substrate provides the edge integrity needed for tight-tolerance finishing and profiling work. Machinists and tool-and-die professionals are the primary users of this tool.

This end mill is suited for contouring, slotting, and profiling operations on a variety of materials including hardened steels, cast irons, stainless steels, non-ferrous metals, non-metallic materials, and high-temperature alloys, corresponding to material codes H, K, M, N, P, and S. Its single-end configuration and 0.125 inch shank diameter make it appropriate for CNC machining centers and manual mills requiring small-diameter tooling. The regular-length designation suits standard reach applications without the rigidity trade-offs associated with extended-reach tooling.

Key Features

• 0.125 inch ball end diameter with 0.375 inch length of cut for precise profiling
• Solid micrograin carbide construction for superior edge retention and rigidity
• TiCN coating for improved wear resistance and reduced heat buildup at the cutting edge
• 4-flute, right-hand spiral design with 30-degree helix for efficient chip flow
• Variable index flute spacing reduces chatter and improves surface finish
• Single-end, regular-length configuration for maximum rigidity in standard-reach setups

Compatibility

Designed for use with CNC machining centers and manual milling machines accepting a 0.125 inch straight shank. Suitable for workpiece materials classified under material codes H, K, M, N, P, and S as specified by the manufacturer.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for collet or end mill holder selection. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool. Verify collet size matches the 0.125 inch shank diameter and that the tool is seated to the recommended gauge length to maintain rigidity. Do not exceed the tool manufacturer recommended speeds and feeds for the selected workpiece material and coating type.