Johnson's 8" T-bevel takes the guesswork out of angle duplication and eliminates the problems associated with analog readings and manual measurement transfer. It features a heavy-duty adjustable stainless steel blade that will never rust or corrode, as well as a durable Structo-Cast® high-impact handle with a hand grip. Its durable locking nut holds the blade securely in place to keep your work accurate when transferring angles.