Seco 03171228 Ball End Mill 0.039 in 2 Flute Solid Carbide

Product Description

The SECO 03171228 is a solid carbide ball end mill designed for precision milling in demanding industrial machining applications. Part of the JMB542 series, this single-end tool features a 0.039 inch (1.00 mm) mill diameter with a 0.04 inch (1.00 mm) length of cut, a 0.50 mm nose radius, and a 30-degree medium helix angle. The 2-flute, right-hand cutting geometry is suited for both roughing and finishing operations. The SIRON-A PVD coating provides thermal resistance and wear protection, extending tool life in abrasive and high-temperature cutting environments. Licensed machinists and CNC operators will find this tool appropriate for tight-tolerance, small-feature work on a variety of workpiece materials.

This ball end mill is engineered for use on steel, stainless steel, non-ferrous metals, superalloys, titanium, hard materials, and graphite. The extended reach design with a 0.08 inch (2.00 mm) reach length and a 0.95 mm neck diameter makes it well suited for deep-cavity and restricted-access milling operations. The straight-cylindrical shank measures 4.00 mm (0.160 inches) in diameter with an h5 tolerance, suitable for precision collet or shrink-fit toolholding systems. Overall length is 50.00 mm (1.97 inches). This tool is intended for use in CNC machining centers where tight TIR control is required.

Key Features

• 1.00 mm (0.039 inch) ball end diameter with 0.50 mm nose radius for fine-feature profiling
• SIRON-A PVD coating rated for steel, stainless, titanium, superalloys, hard materials, and graphite
• Extended reach geometry with 2.00 mm reach length and 0.95 mm neck diameter for deep-cavity access
• Micrograin solid carbide substrate for rigidity and wear resistance in high-speed applications
• Right-hand cut and right-hand helical flutes with 30-degree helix angle for controlled chip evacuation
• Single-end configuration with no chipbreaker and no coolant-through requirement

Compatibility

Designed for use in CNC machining centers with precision collet or shrink-fit toolholding systems accepting a 4.00 mm straight-cylindrical shank with h5 tolerance. Part of the SECO JMB542 series; catalog number JMB542010G1B.0Z2-SIRA.

Installation Notes

This tool is installed and serviced by qualified CNC machinists or toolroom personnel. Power down and lock out the spindle before changing or inspecting tooling. Verify collet or shrink-fit holder bore matches the 4.00 mm shank diameter and confirm runout is within the 0.01 mm TIR maximum before beginning a cut. Do not exceed the manufacturer-rated depth of cut or feed rate for the target workpiece material.