Sgs 39789 3 Flute Square End Mill Set 6 Piece

Product Description

The SGS 39789 is a 6-piece solid carbide square end mill set with a 3-flute, single-end design and a titanium nitride (TiN) finish. Built from micrograin carbide, these centercutting end mills deliver clean, accurate cuts in ferrous and non-ferrous materials. The set covers six common mill diameters: 1/8, 3/16, 1/4, 5/16, 3/8, and 1/2 inch. Regular length geometry keeps deflection low in standard milling operations. The TiN coating extends tool life by reducing friction and heat buildup at the cutting edge. This set is suited for machinists, toolroom technicians, and fabricators who need a ready-to-use assortment of general-purpose end mills.

These end mills are designed for use in vertical milling machines, CNC machining centers, and manual knee mills running regular-depth slotting, profiling, and peripheral milling operations. The centercutting configuration allows direct plunge entry without a pre-drilled pilot hole. Shank diameters in the set are 1/8, 1/4, 3/8, and 1/2 inch, accommodating standard collet and end mill holder systems. The Series 5 designation indicates a general-purpose performance tier appropriate for production and maintenance machining environments.

Key Features

• 6-piece assortment covering mill diameters from 1/8 inch to 1/2 inch
• Solid micrograin carbide construction for rigidity and wear resistance
• TiN finish reduces friction and extends cutting tool life
• Centercutting design allows direct plunge milling
• 3-flute geometry balances chip evacuation and surface finish
• Single-end configuration; regular length for standard reach applications

Compatibility

Designed for use with standard collet chucks and end mill holders accepting 1/8, 1/4, 3/8, and 1/2 inch shank diameters on vertical milling machines and CNC machining centers.

Installation Notes

Installation and tool changes must be performed with the spindle fully stopped and the machine in a locked-out, de-energized state per applicable lockout/tagout procedures. Secure each end mill in a properly sized collet or end mill holder, torquing the retention hardware to the machine manufacturer specification. Inspect each tool for chipping or coating damage before use. Handle carbide tooling with care to avoid edge chipping during storage and setup.