Erowa ER-030478 Compatible ProductionChuck 210 Combi. Erowa ER-030478 compatibe Chuck is useful for strong machining forces in chip-cutting operations. PC 210 with integrated PowerChuck P. Rhs version ER-030478 Compatible is applicable to clamping PC pallet 210, ITS Pallets diamiter 148, diamiter 115 and ITS 50 holders on milling machines, lathes, grinding machines and EDM centers.