23 Jul Dial Digital Indicator Extension Stem Rod 4.5mm Diameter 4-48 UNF Thread 10mm
5 extension rods in lengths 10mm, 15mm, 20mm, 30mm, 40mm. Make any combination up to a total of 115mm. Effective length is not include Thread shank. So easy to use. Extension rod length:10mm/15mm/20mm/30mm/40mm....