Sgs 39025 Square End Mill 13/64 in 4 Flute Solid Carbide

Product Description

The SGS 39025 is a single-end, square-profile solid carbide end mill designed for precision milling in a wide range of metalworking applications. It features a 13/64 inch (0.2031 inch) cutting diameter and a 5/8 inch length of cut, with a 30-degree right-hand spiral helix that promotes efficient chip evacuation and stable cutting performance. The tool is coated with TiCN (Titanium Carbonitride), which increases surface hardness and wear resistance compared to uncoated carbide. The micrograin carbide substrate provides edge toughness at small diameters. A variable index flute geometry helps reduce chatter. Licensed machinists and CNC operators install this tool in milling machines and machining centers for finishing and semi-finishing passes.

This end mill is well suited for milling operations on a broad range of workpiece materials, including hardened steels, cast irons, stainless steels, non-ferrous metals, non-metallic materials, and high-temperature alloys, as indicated by its material code ratings (H, K, M, N, P, S). The 1/4 inch straight-cylindrical shank fits standard collet chucks and end mill holders sized for 1/4 inch tooling. Its 2-1/2 inch overall length and regular-length classification make it a practical general-purpose choice for pocketing, slotting, and peripheral milling at small diameters.

Key Features

• TiCN coating increases surface hardness and extends tool life across multiple workpiece material types
• Micrograin solid carbide substrate supports edge integrity at the 13/64 inch diameter
• Variable index flute spacing reduces harmonic vibration and chatter during cutting
• 30-degree right-hand helix with right-hand cutting direction for conventional CNC milling setups
• Centercutting geometry allows plunge entry into workpiece material
• Tight diameter tolerance of +0.000 / -0.002 inch maintains dimensional accuracy at the cut

Compatibility

Designed for use in standard 1/4 inch collet chucks, end mill holders, and hydraulic or shrink-fit toolholders on CNC and manual milling machines. Compatible with workpiece material categories H, K, M, N, P, and S as specified by the manufacturer.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before changing tooling. Insert the shank to the full recommended engagement depth in the collet or holder and torque to the toolholder manufacturer specification. Inspect the cutting edges and coating for chips or damage before each use; a compromised edge on a small-diameter carbide tool can lead to breakage during the cut.