0.3mm Long Reach Ball End Mill – Solid Carbide The Long Reach End Mill tools have a relief grind after the flutes to allow you to continue your cut or plunge without hitting the shaft of the tool. Ball End Mills have a round tip used to machine curved details, also called Ball Nose End Mills, they are used for milling rounded slots, slopes, and machining 2D/3D dimensional contours with a smooth finish. Great for milling into all types of material including, wood, plastic, metal. etc. Made in the USA. Shank Size: 3mm Tool Length: 38mm Tip Size – 0.3mm Flute Length – 0.9mm Length of Reach – 5.0mm