Marcrist MRCPC850127 Diamond Core Drills. PC850 Diamond Percussion Core 127mm x 165mm. Power source: Corded Electric. Voltage: 2.2E+2 Volts (AC). Special feature: Diamond Core. Product Dimensions:? 16 x 16 x 19 cm; 1.76 kg. Item model number:? MRCPC850127. Special Features:? Diamond Core. Voltage:? 2.2E+2 Volts (AC). Item Weight:? 1.76 kg.