Magnetic Centering Head with Vial, 6 in and Larger Pipe Capacity, Medium no checkout Non conductive solid Nuplaglas handles are Non conductive solid Nuplaglas handles are manufactured in Safety Orange for easy identification and provide electrical insulation on the job Handles are laser marked 1000V with high voltage double diamond Each tool carries a unique serial number permanently registered at Nupla Corporation Galvanized steel base with polyethylene tube Ideal for designated smoking areas One piece Y shaped body design with magnetic legs Built in dial with 2 1 2° increments that turns 360° Hardened center punch marks set position by taping with a hammer Used to establish and mark a centerline at any angle around circumference on a pipe or tank or as a protractor level Excessive heat can damage magnets