Sgs 39531 Square End Mill 0.25 in 2 Flute Solid Carbide

Product Description

The SGS 39531 is a solid carbide square end mill designed for precision milling operations across a wide range of materials. Built to Series 3 specifications, this centercutting tool features a 0.25 inch cutting diameter, a 0.75 inch length of cut, and a 2.5 inch overall length. The micrograin carbide substrate provides hardness and edge retention suited to demanding cutting applications. A TiCN coating reduces friction and improves wear resistance. With two spiral flutes and a 30-degree helix angle, the 39531 produces efficient chip evacuation while maintaining surface finish quality. Licensed HVAC, machining, and metalworking professionals install this tool in CNC mills and manual milling machines.

The SGS 39531 is suited for milling ferrous and non-ferrous metals, high-temperature alloys, cast iron, and non-metallic materials as indicated by its primary workpiece material codes H, K, M, N, P, and S. Right-hand cut and right-hand flute geometry make it compatible with standard spindle configurations. The regular length classification and straight cylindrical shank fit standard collet and end mill holder systems. It is appropriate for slot milling, profiling, and plunge cutting applications where a centercutting tool is required.

Key Features

• 0.25 inch cutting diameter with plus 0.000 inch and minus 0.002 inch mill diameter tolerance
• Solid carbide micrograin construction for extended tool life and edge stability
• TiCN coating for reduced friction and improved wear resistance
• Two spiral flutes with 30-degree helix angle for efficient chip evacuation
• Centercutting geometry allows direct plunge entry into workpiece
• Straight cylindrical shank with plus 0.00000 inch and minus 0.00035 inch shank diameter tolerance

Compatibility

Designed as a standard-fitment replacement end mill for use in CNC machining centers and manual mills accepting a 0.25 inch straight cylindrical shank with collet or end mill holder tooling.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the spindle before changing tooling. Seat the shank fully in the collet or end mill holder and verify runout with a dial indicator before cutting. Follow machine manufacturer torque specifications for collet nuts and tool holders.