2 Flute Ball Nose End Mill

The 2 Flute Ball Nose End Mill is a ball-end milling cutter with a hemispherical cutting tip, used for 3D contour work, pocketing, fillet machining and curved surface finishing where a flat end mill cannot follow the shape. The standard range covers 37 sizes with ball radii from 0.5 mm to 10 mm — cutting diameters from 1 mm to 20 mm — flute lengths from 2 mm to 40 mm and overall lengths of 50, 60, 75, 100 and 150 mm, including eight extended-length sizes in the 150 mm group. Five grade and coating variants are offered: the HRC55/56 series in three coating finishes (silver, rainbow and bronze), HRC60 in a grey-blue finish and HRC65 in a blue finish, as shown in the product photos.

Each size is written in one line, for example R5*20*D10*75L*2F, which is also the code laser-marked on the tool shank. The four figures are the ball radius (R), the flute length (l), the shank diameter (D) and the overall length (L), all in millimetres, and 2F states the two-flute count that applies across the whole series. The cutting diameter of a ball nose end mill is twice its ball radius, so R5 cuts a 10 mm diameter sweep in a full-radius pass.