Sgs 70470 Square End Mill 0.125 in 4 Flute Solid Carbide

Product Description

The SGS 70470 is a solid carbide square end mill designed for precision milling in demanding industrial and toolroom applications. Built to Series 63 long-length specifications, it features a 0.125-inch diameter with a 0.75-inch length of cut and a 2.25-inch overall length. The four-flute geometry paired with a 38-degree helix angle and AlTiN finish supports aggressive material removal while managing heat at the cutting zone. The variable index design reduces harmonic chatter, making it a reliable choice for machinists and tool-and-die professionals working in tight tolerances.

This end mill is suited for milling centers, CNC machining cells, and manual knee mills where small-diameter, long-reach cutting is required. The AlTiN coating extends tool life when cutting harder materials. SGS primary workpiece material codes H, K, M, P, and S indicate suitability across hardened steels, cast iron, stainless steel, carbon steel, and high-temperature alloys. The long-series length type provides the reach needed for deep-pocket and slotting operations where standard-length tools cannot engage.

Key Features

• Solid carbide micrograin construction for high wear resistance and edge integrity
• AlTiN finish for improved heat resistance in dry or minimal-lubrication cutting
• 38-degree spiral flute helix angle optimized for chip evacuation and surface finish
• Variable index flute spacing reduces vibration and chatter during cuts
• Centercutting design allows plunge milling as well as peripheral cuts
• Right-hand cut, right-hand flute configuration compatible with standard spindle rotation

Compatibility

Designed for use with standard straight-cylindrical shank tool holders accepting a 0.125-inch shank. Workpiece material codes H, K, M, P, and S as specified by SGS indicate suitability for hardened steels, cast iron, stainless steel, carbon steel, and superalloys.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine in an e-stop or locked-out state per facility lockout/tagout procedures. Confirm tool holder bore diameter and runout before seating; excessive runout on a small-diameter carbide tool accelerates breakage. Torque the collet or holder to the tool holder manufacturer specification. Inspect the cutting edges and AlTiN coating for chips or delamination before each use, as solid carbide is brittle and sensitive to shock loads from interrupted cuts.