This assembly pot has 2 fixed positions for DIN69871 spindle tooling, one for vertical assembly and one for horizontal assembly. These provide a safe and essential way of assembling cutting tools in the tool holder without causing damage to the tool or injury to the operator. SK50 Assembly Pot 2 Fixed positions For vertical and horizontal assembly retailing at £359 each online. For safe assembly of tools & tool holders sold separately or as a pair. message me to discuss. many thanks!