Sgs 35689 Corner Radius End Mill 0.5in 3 Flute Tib2 Carbide

Product Description

The SGS 35689 is a solid carbide corner radius end mill designed for high-performance material removal in non-ferrous metal applications. It features a 0.5-inch mill diameter, a 0.03-inch corner radius, and a TiB2 coating marketed under the Ti-NAMITE-B designation, which provides hardness and wear resistance suited to aluminum, brass, copper, and similar materials. The three-flute, right-hand helical design supports efficient chip evacuation during roughing operations. With a 5/8-inch length of cut, a 3-inch overall length, and a straight cylindrical 0.5-inch shank, it mounts directly into standard end mill holders used in CNC machining centers and manual mills.

This end mill is intended for short-reach roughing operations on non-ferrous metals in production and job-shop environments. The coarse pitch and high helix angle promote aggressive chip removal while keeping heat and tool deflection manageable. It is a single-end, centercutting tool suited for slot milling, profiling, and pocket roughing where corner radius geometry helps reduce stress concentrations at inside corners. Machinists and CNC programmers working with aluminum or other non-ferrous stock will find this geometry appropriate for both roughing passes and semi-finish work requiring a controlled corner break.

Key Features

• 0.03-inch corner radius reduces stress risers at inside corners during profiling and pocketing
• TiB2 (Ti-NAMITE-B) coating enhances surface hardness and wear resistance on non-ferrous workpiece materials
• Three right-hand helical flutes with coarse pitch support efficient chip evacuation in roughing cuts
• Solid carbide construction provides rigidity and dimensional stability at elevated cutting speeds
• Straight cylindrical shank with h6 shank diameter tolerance fits standard end mill holders and collet chucks
• Short flute length-to-diameter ratio minimizes deflection in shallow-to-moderate depth-of-cut applications

Compatibility

Designed for use with standard end mill holders and collet-style toolholding systems. Primary workpiece material classification is non-ferrous metal (material code N), including aluminum, brass, copper, and similar alloys. Listed under SGS Series 43CR.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before mounting or removing the tool. Confirm the shank is fully seated and the holder is torqued according to the toolholder manufacturer specification before initiating a cut. Do not exceed the recommended depth of cut or axial engagement for the flute length, as overloading a short-flute end mill can cause tool breakage.