A201B ACIERA 22-STA, 23-ST-40, 23-ST-42 and 23-TNC Precision Co-ordinate Milling and Drilling Machines. Catalogue. ACIERA 22-STA, 23-ST-40, 23-ST-42 and 23-TNC Precision Co-ordinate Drilling, Boring and Milling Machines. Sales and Technical Specification Catalogue. 32 pages. Manufacturers: Aciera Models: 22-STA 23-ST-40 23-ST-42 23-TNC Contents: Catalog