• Minimum Measurement (Inch): 5/32"
• Maximum Measurement (Decimal Inch): 12
• Dial Graduation (Decimal Inch): 0.0005
• Dial Reading: 0-50
• Provides a simplified method of centering a work piece or fixture on horizontal for 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 • Shank Dia.: 3/8" / 10mm • Operating speed not to exceed 800 RPM • Range 1/4", Internal: 5/32" - 12"/ 4 - 300mm, External: Up to 12"/ 300mm • Includes 6 pcs Feeler Set, Center Locating Feeler, Warranty card, Instruction manual