A device, apparatus and method for abrasive electrochemical finishing of a stack of arched edge sheets (10) are presented. The device (130) includes: a concave support block (135) having holes for receiving fasteners; first (175) and second (180) removable end blocks configured to sit at opposite ends of the concave support block (135); first (140) and second (145) removable face plates attached to opposite sides of the concave support block (135) via the fasteners; and a region of the space (185) between the first (140) and second (145) removable face plates, the first (175) and second (180) removable end blocks, and the concave support block (135). ).
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