Snap gages are designed for quick inspection of diameters of cylinders and shafts in machining processes. Snap gages are a quick way to check the outside diameter of a shaft while still in a machine or an OD that is difficult to locate/reach with ring gages. Available in three styles. Type “A” with pin type anvils, Type “C” with flat square anvils (most common), and Type “U” with knife edge anvils for checking grooves/undercuts. Gaging surfaces are manufactured of hardened, ground and lapped tool steel.
All AGD snap gages are manufactured per ANSI/ANSI B47.1 – 1988. Anvil parallelism is superior to military specifications. Marking discs are supplied with all gages. Snap gages are for both English and metric measurements. They can be “Set” several times as they wear during use and can be purchased “Set & Sealed “from the factory or set and sealed in your facility. Sizes range from 0" to 11 5/8" and are traceable to NIST. (National Institute of Standards and Technology)