... , 200MM, 250MM, 300MM, 350MM, 400MM, 450MM and Frankfurt2. Roller quantity in per bush hammer: 3PCS, 4PCS, 5PCS, 6PCS, ... 9PCS and 12PCS3. Segment quantity in per roller: 30PCS and 45PCS4. Mainly used for the stone finishing ... adjusted and the size of adaptor decide to its machine.. Specification:Item NameDiameterRoller QuantitySegment QuantityBush Hammer5"125MM3306"150MM4308"200MM44510" ...