"U" mills leave the bottom of the pocket flat.

These Proxxon 27116 cutters are made of highly compressed wear resistant fine granular tungsten. They are suitable for use in milling at highest precision to finest tolerances. Can be used on plastic, non-ferrous metals, steel, cast steel, and extremely hard materials.

These cutters are also suitable for specific, technical jobs, such as milling or engraving on Printed Circuit Board materials and PC cards. Please secure your workpiece tightly to ensure a high accuracy, vibration free milling and avoid accidents. Shank diameter 3.0mm, tip 1.0mm, 2.0mm and 3.0mm (this is a three pieces set).