Thread Plug & Ring Gages: Ingram Gage Company manufactures standard and special thread plug and ring gages. The plug gages are made in taperlock, reversible, and trilock styles. These special gages are offered in inch and metric sizes, 60 degree, 60 degree Stub, Acme, Stub Acme, Trapezoid, & Buttress gages. Pre-plate gages are made to customer specifications. Thread Plug and Thread Ring Pipe Gages: We also offer special taper thread plug and ring pipe gages in NPT, ANPT, NPSM, and NPTF configurations. Standard sizes are also available. Cylindrical Plug and Ring Gages: Ingram Gage Company offers taperlock, trilock, and reversible trilock plain plug gages in addition to plain ring gages. These gages are available in inch and metric sizes. Ring gages are available up to 16" diameter and the plain plug gages are available up to 12" diameter. Set Plug Gages and Master Discs: Set plugs can be made for the special ring gages. Master setting discs are also available. Snap Gages: Ingram Gage Company offers adjustable limit snap gages in four models and sizes up to 11". Specialty Gages and Thread Core & Mold Grinding: We offer specialty gages such as horseshoe style plug gages in addition to core and mold thread grinding.