Precision Level | D-205 An extremely precise instrument designed for applications requiring maximum accuracy on small surfaces or confined working areas. The level base is machined from a hardened 5 inch (127 mm) length, relieved at each end to provide a 3.50 inch (88 mm) bearing face. It is then lapped to within +0.000060 in. The bubble which is kinematically mounted and provided with a fine adjustment screw has a sensitivity of 5 sec. per division. A metal cover with a glass window protects the bubble and mounting. The precision block level can be used as a comparator for measuring and checking small linear differences between gage block combinations or gage blocks and a work piece. By using a horizontal table and bridging with the instrument, it is possible to check a difference of 0.000005 in. (or 0.0005mm per 50mm). ▪▪ Extremely accurate horizontal reference with 5 arc seconds sensitivity ▪▪ Maximum precision for tool makers machinists and inspectors ▪▪ Finished in ivory and chrome ▪▪ Complete with finished wood carrying case D-205C is relieved in the center 3.5 inch (89 mm) with each end lapped to within ±0.000060 inches. Note: 1-8 seconds per division are periodically available Specifications Sensitivity: 5 arc sec per division ± 1 arc sec Dimensions: (L x H x W) 5 x 1.25 x 1 inch (127 x 31 x 25 mm) Bearing Surface: ±0.000060 inch Finish: Cover: Ivory enamel Base: Chrome Carrying Case: Fitted Hardwood Weight: 2.2 lbs (1 kg) Shipping Weight: 4 lbs (1.8 kg) 2223 West San Bernardino Road West Covina, California 91790 Phone: (626) 962-5181 Fax: (626) 962-5188 www.davidsonoptronics.com sales@davidsonoptronics.com