Sgs 39341 Square End Mill 21/64 in 2 Flute Solid Carbide

Product Description

The SGS 39341 is a solid carbide square end mill designed for precision milling in a wide range of metalworking applications. It has a 21/64-inch (0.3281-inch) mill diameter, a 1-inch length of cut, and a 3/8-inch straight cylindrical shank. Overall length is 2-1/2 inches. The two-flute spiral design paired with a TiN finish gives this tool strong chip evacuation and wear resistance. Micrograin carbide construction supports tight tolerances and consistent performance across repeated cuts. It is centercutting, allowing plunge entry as well as conventional peripheral milling. Right-hand cut and right-hand flute orientation are standard for this tool.

This end mill is suited for milling operations on a broad set of workpiece materials, including cast iron, non-ferrous metals, stainless steel, carbon steel, and high-temperature alloys, as indicated by its primary material codes H, K, M, N, P, and S. The regular length profile fits standard knee mills, CNC machining centers, and toolroom mills where a compact reach is appropriate. It is typically purchased by machinists, tool-and-die shops, and maintenance shops handling general-purpose metal removal work.

Key Features

• Micrograin solid carbide construction for rigidity and edge retention
• TiN finish for improved lubricity and extended tool life
• Centercutting design allows plunge milling without a pre-drilled entry
• 30-degree helix angle promotes smooth cutting action and chip flow
• Mill diameter tolerance of +0.000 / -0.002 inches for precise fitment
• Two-flute spiral configuration for efficient chip clearance in a range of materials

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide square end mill suitable for standard 3/8-inch collet or end mill holders on CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Secure the shank in a clean, properly sized collet or end mill holder torqued per the holder manufacturer's specification. Verify runout with a dial indicator before beginning a cut, as excessive runout will accelerate edge wear and affect dimensional accuracy.