S234 4-flute end mills have an aluminium titanium nitride coating which prevents workpiece material from sticking to the cutting edges of the tool so you get a clean and accurate result, and are manufactured from premium carbide, providing superior performance and longer tool life. High rigidity for standard profile milling is provided by the medium flute length and the tools are a very economical range for general slot milling on most types of machines. S234 4-flute milling cutters are suitable for plunging, ramping and profile milling in steel, stainless steels and cast irons.