Starrett Groove Gage Contact Indicator Accessories - Style 1-10, Interchangeable Jaws, Adjustable Range - PT30917

This lightweight gage is used for in-process or bench inspection of oil grooves, snap ring retainer grooves, "O" ring seat retainer grooves and similar internal recesses. It is also useful for checking bore dimensions and testing for taper, bell-mouth and out-of-roundness. The movable, sensitive gaging contact has a 1/2" (12. 7mm) retractable range and transfers the measurement through a linear, friction-free transfer mechanism to the dial indicator. The lower reference jaw is fixed and supports the entire weight of the gage and the operator's hands, thus preventing incorrect gaging pressure and false readings. The reference jaw can be mounted in two positions on the range adjusting bar. The bar itself is also adjustable for greater or lesser range. A fine adjustment screw and a lock are also provided. Three sets of contacts are furnished (Styles 1-10, 2-10, 2-20) that can be attached to the ends of the jaws without replacing the entire jaw. Contacts have flush ends so that grooves at the bottom of blind holes can be gaged. The contacts are hardened steel with hard chrome finish for long life.

• Versatile Applications - Ideal for in-process or bench inspection of oil grooves, snap ring retainer grooves, O-ring seat retainer grooves, and similar internal recesses.
• Accurate Measurements - Features a 1/2" retractable range with a friction-free transfer mechanism to ensure precise readings.
• Adjustable Design - Includes an adjustable range bar and a fine adjustment screw with a lock for customized measurements.
• Interchangeable Jaws - Supplied with two sets of jaws and three sets of hardened steel contacts with a hard chrome finish for durability.
• The Standard for Excellence - Proudly made in the USA, Starrett combines over 140 years of American heritage and innovation with globally sourced materials to deliver exceptional quality tools and products.