CURV-O-MARK Center Head Standard (J1879)
Aids in the setting of center lines, establishing angles and marks for butt-ins, location points inside pipes and tanks, laying out key ways, and measuring declivity.
The standard head model is used on 1/2" diameter pipe and up. It features a 4" Y type head fitted with an adjustable dial bubble protractor. Use a tapping hammer to operate the hardened centering pin.