R8 Collect Multi-functional Cutter Grinder Sharpener 5 types R8 Collects:0.15''=4mm, 0.2''=6mm, 0.3''=8mm, 0.4''=10mm, 0.5''=12mm It is a machine used for grinder. Suitable for different kind of cutters, such as drill bit, lathe bit,end mill by using different accessories. Strength increase, increase the service life of blade and processing capacity. High grinding accuracy, easy to install, aesthetically pleasing, novel structure, flexible the rotating parts, low noise, small vibration, tool post part bearing, durable, wear-resisting, All kinds of diameters, shapes, Angles of the carving knife according to the proportion of engraving corresponding grinding. PARAMETERS Grinding Dia.:ф0-100mm(0-3.94") Taper Angle:0°-180° Relief Angle:0°-45° Negative Angle:0°-26° Grinding Spindle:5200r.p.m. Cup Grinding Wheel:100x50x20mm(3.9*2.0*0.8") Motor:110V/60HZ Read more