Accurately Measures Inside Dimensions Of Barrels, Choke Tubes & More
Precision, inside dial caliper gives the gunsmith the right tool to accurately measure chambers, choke tubes, bores and various other inside dimensions in the gun shop. Easy-to-read dial is graduated to handle measurements from .375"–1.375" with .001" accuracy. Aluminum housing with bezel locking screw lets you set zero for comparative measurements. Small needle measures tenths of an inch, large needle records thousandths. Push-button on the side closes the caliper arms so you can insert the caliper into the area to be measured. Ball bearing contact points deliver true, repeatable measurements every time.
Big Book Catalog, Issue:66, Page:463
SPECS: Aluminum housing, steel arms. 5.3" (13.6cm) OAL, 2" (5cm) diameter dial. Micrometer range is .375 to 1.375 inch, each revolution equals .200 inch.