Shaft Alignment Clamp Set Alignment Distance - Maximum 7 1/2 in Beam Color Not Applicable Clamp Material Aluminum Compatible Shaft Diameter - Maximum 7 1/2 in Dial Reading 0-50-0 Includes Case Chain Clamp Extension Plate Posts Indicator Post Diameter 3/8 in Indicator Post Length 9 in Indicator Post Material Stainless Steel Indicator Type Dial Number of Clamps 2 Number of Indicator Posts 3 Operating Temperature - Maximum 114 Degrees F Operating Temperature - Minimum 30 Degrees F