Specially designed for 2D and 3D CNC profiling and carving in plastic, aluminum & wood with CNC machines. The high-shear ball nose tips cut Smooth 2D and 3D contours with reduced stepping. Some of Amana Tool carving tools, as you can appreciate have a very small diameter therefore any material chip-loads need to reflect that small size. It can however withstand RPM up to 60, 000 RPMs. A directed air-blast to keep chips away along with cooling the tool and work piece are always welcome, #46280-U, (D) diameter: 1/32, (r) radius: 1/64, (a°) angle: 6.2°, (b) Cutting height: 1, (D) shank: 1/4, overall length (L): 3, type: ball nose, uncoated, flutes: 3, 46280-U CNC 2D and 3D carving 6.2 deg tapered angle ball tip x 1/32 dia x 1/64 radius x 1 x 1/4 shank x 3 inch long x 3 flute solid carbide Up-cut spiral router bit