In this improved model,ceramic fibre wool insulation (instead of brick insulation) has been provided resulting in weight and size reduction of furnace. The weight and size of the furnace is 1/4 and 30% respectively as compared to brick furnace. The heat up time is less. heat loss is very low-resulting in power saving.It is compact complete unit with independent driving motor, speed change arrangement, swan neck tap, drain pot, guard, cover and ON/OFF switch. Thus in this machine you have a low priced compact versatile polishing arrangement requiring minimum of maintenance in your laboratory. Portable table top model having stainless steel sink with built in drain pot and sink area and fitted with swan neck tap. The drive is of a 1/4 H.P. T.E.F.C., 220 Volts AC, single phase Motor employing a continuously variable speed mechanism giving speed from 300 to 900 RPM approximately. The disc of 8" dia. bronze push fits on a tapered steel spindle. The spindle runs freely in two ball bearing fitted in the housing. The change of speed is made with the help of a circular control wheel. The machine is supplied with splash guard/ hand rest. disc cover and cloth clamping ring for fixing cloths. Paper clamping ring for fixing papers on the disc, as extra accessory is available.