Supply of 10 MM NQ PCD CORE BIT 8 CUTTER , 13 MM NQ PCD CORE BIT 5 CUTTER , N SIZE PCD CRAB BIT , H SIZE PCD NON CORING BIT , N SIZE PCD NON CORING BIT , H SIZE DIAMOND IMPREGNATED CORE BIT , N SIZE DIAMOND IMPREGNATED CORE BIT