Gaging.com is and Authorized Distributor of Thread Check Inc., manufacturers of a complete line of thread gages and related products used to measure screw threads and calibrate gages. Thread Check Inc. offers thread plug gages and ring gages, tapered pipe thread gages, straight pipe thread gages, API gages, 3-Wire thread measuring systems, tri roll thread comparators, British thread gauges (Whitworth), thread work plugs, and special thread gages including Acme thread gages, buttress thread gages, and custom thread gages.  Call us for great pricing on any items!