Marcrist MRCPC850132 Diamond Core Drills. PC850 Diamond Percussion Core 132mm x 165mm. Item dimensions L x W x H: 16 x 16 x 19 centimetres. Tool flute type: Spiral. Product Dimensions:? 16 x 16 x 19 cm; 1.83 Kilograms. Item model number:? MRCPC850132. Item Weight:? 1.83 kg.