Fowler's Coaxial Indicator Set Provides a simplified method of centering a workpiece or fixture on horizontal or vertical machines, internal or external diameters. Face of indicator remains stationary in any desired position while the machine spindle rotates, leaving the operator with both hands free to accurately position the machine table. Features include... Length: 6 7/8" / 175mm Shank Dia: 3/8" x 7/8" / 10mm x 20mm long Feeler Ball: 1/8" diameter Dial Reading: 0-50 Locating Accuracy within 0.0002" of true center. Operating speed not to exceed 800 RPM. Capacity: 5/32" - 12" Internal; Up to 12" external Graduations: 0.0005" Kit includes each of the following... Indicator 3 Internal Feelers 3 External Feelers Center Locating Feeler Fitted Box
