A ruby tip has resistance to wear several times greater than a carbide tip and,since it is nonconductive ,it ca be used with safety even on an electrical discharge machine. Fits Dial indicator height dial test indicator depth gauge etc interchangeable measure Tool. Suitable for probing the bottom of a groove or hole. All Thread shank M2.5, Effective length is not include Thread shank and knurling shank. 2mm diameter ruby ball,Package: A Set(L10/L20/L30/L40/L50). Size: L10
Thread shank M2.5 Ruby Diameter 2mm(0.0787”) Effective length 10mm(0.3937”)
Size:L20
Thread shank M2.5 Ruby Diameter 2mm(0.0787”) Effective length 20mm(0.7874”)
Size:L30
Thread shank M2.5 Ruby Diameter 2mm(0.0787”) Effective length 30mm(1.1811”)
Size:L40
Thread shank M2.5 Ruby Diameter 2mm(0.0787”) Effective length 40mm(1.5748”)
Size:L50
Thread shank M2.5 Ruby Diameter 2mm(0.0787”) Effective length 50mm(1.9685”)
Size:A SET(L10/L20/L30/L40/L50)
Package: A SET (5 Ruby contact point.)