2. The finger tip is a rotating tool used on a Radial Arm Machine With about 8000rpm. It mill about 2mm depth, 20mm width groove per pass. It work very fast.
Manufacturers and suppliers of Professional diamond tools such as diamond cutting discs,diamond router bits,diamond milling wheels,diamond core drill bits,diamond files,diamond mounted points,diamond hole saws,diamond polishing pads,diamond&CBN tools in China