|  | An FAST and ACCURATE way
                        to measure cylinder diameters. 
 FAST MEASUREMENT OF 6" DIA. CONCRETE CYLINDERS
                            AND OTHER COMPRESSIVE STRENGTH SPECIMENS
 
 6.1" CALIPERS WITH 3.2" JAWS
 
 ACCURATE TO 0.01" PER ASTM C39. INCLUDES CALIBRATION CERTIFICATE TRACEABLE TO NIST.
 
 $$ HUNDREDS LESS AND MORE COMPACT THAN CALIPERS WITH COMPARABLE JAW SIZE
 
 Graham provides a six month warrantee
                            for all calipers. Measurements using the extensions accurate to +/- 0.005.
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