J.W 2280-ALS-17-K-30 17mm Winco GN2280 Aluminum Adjustable Bulls-Eye Level with Mounting Threads Inc.
J.W. Winco GN2280 Aluminum Adjustable Bull's-Eye Level with Mounting Threads, 17mm (2280-ALS-17-K-30) - -. Housing: Aluminum Anodized - Black Finish 。 Spirit Level Element: Glass Plastic Body 。 Sensitivity: 30 Angle Minutes - Bubble Moves by 2 mm 。 17mm Body Diameter 。 (3) M3 x .5 Tapped Threads 。 GN 20 bull's-eye levels are used to check the horizontal position of jigs, machines, devices, appliances and instruments. The mounting threads offset by 20Degree allow the spirit levels to be aligned in relation to the mounting surface. An alignment ball at the bottom surface of the adjustment plate serves as tilting point. Specific tightening torques of the bolts are allowed to be achieved, so that the bubble is centrally located inside the marking ring once the horizontal alignment is reached. 。 。 。