18442 8750

Major Features:
1. Economical check master (Steel Gage Blocks) This Check Master, designed for convenient and quick testing of general calipers.
2. General check master (White Ceramic Gage Blocks) This Check Master is designed to check the fixed accuracy of digital-controlled machine tools, machining center positioning and three-dimensional measuring machines.
3. Steel-made check master, with steel gauge blocks, needs attention to avoid rust; while ceramic check master, with ceramic gauge blocks, is not only free from rust, but also abrasion.