Designed to establish and mark a centerline at any angle around the circumference (inside or outside) on a Pipe or tank Use it as a Protractor level, or remove and use the hardened center Punch for other marking jobs

Designed to establish and mark a centerline at any angle around the circumference (inside or outside) on a pipe or tank. Use it as a protractor level, or remove and use the hardened center punch for other marking jobs. Magnetic.