Uratech 40 Taper Tool holder rackHeavy Duty 40 Taper Mini Tool Holder Rack CNC Tool Storage from Uratech Compatible with CAT 40, BT 40, DV 40, ISO 40, and NMTB 40 Holders by Uratech Compact and durable 40 Taper Mini Tool Holder Rack by Uratech. Designed to fit CAT 40, BT 40, DV 40, ISO 40, and NMTB 40 holders. Features durable red nylon inserts and powder coated steel construction, making it ideal for efficient and organized CNC tool storage. Key Features of the CAT 40 Mini Tool