Manufacture and Design patented tools that are innovative, easy to use, and unique to industry. Rotary Thread developed the world's first rotary thread file, which is able to restore threads in inch, metric, and pipe threads no matter of size. The tool is capable of restoring inside and outside threads in one pocket size tool. Rotary Thread also manufactures snap-ring groove, keyway, ACME thread, Buttress Thread, and hydraulic gland restore tools.