Sgs 34861 Square End Mill 1/4 in 3 Flute Solid Carbide

Product Description

The SGS 34861 is a solid carbide square end mill designed for precision milling of non-ferrous metals and similar materials. It features a 1/4 inch cutting diameter, a 1-3/4 inch length of cut, and a 4 inch overall length with a straight cylindrical 1/4 inch shank. The three-flute, right-hand spiral geometry paired with a TiB2 (titanium diboride) coating supports efficient chip evacuation and extended tool life in aluminum, brass, copper, and other non-ferrous workpieces. The centercutting design allows for direct plunge entry. This tool is part of SGS Series 43 and is intended for use by machinists and CNC operators in production and job-shop environments.

The SGS 34861 is suited for face milling, slotting, and profiling operations on non-ferrous metals in both manual and CNC machining centers. The regular-length geometry and 38-degree helix angle make it a practical general-purpose choice for light to moderate material removal on aluminum alloys, copper, brass, and plastics. Its straight cylindrical shank fits standard 1/4 inch collets and end mill holders commonly used in vertical machining centers and milling machines.

Key Features

• Solid carbide construction for rigidity and wear resistance in non-ferrous applications
• TiB2 finish reduces built-up edge and improves surface finish on aluminum and non-ferrous metals
• Three-flute spiral design balances chip clearance with cutting stability
• Centercutting capability allows direct plunge milling without a pre-drilled entry point
• 38-degree helix angle promotes smooth cutting action and efficient chip flow
• Right-hand cut, right-hand flute configuration for standard spindle rotation

Compatibility

Designed as an OEM-style tooling option for use in 1/4 inch collets and end mill holders on CNC machining centers and manual knee mills; primary workpiece material compatibility is non-ferrous metal (material code N).

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine in a fully stopped and locked-out state. Ensure the collet or tool holder is clean and free of debris before seating the shank to maintain runout tolerances. Do not exceed the manufacturer-recommended speeds and feeds for the workpiece material. Confirm tool projection and holder engagement are appropriate for the depth of cut before starting the spindle.