Used SKF Shaft Alignment Tool, Model SKF TKSA 41. Aligns horizontal shafts, 3 position measurement 9-12-3, 3 position automatic measurement 9-12-3, 3 position free measurement (with min 90 degree rotation). 0.23ft to 13.1ft Measuring distance. Up to 16 hours of continuous use per charge. Serial# 1725-0020.