Type:Drill CollarMachine Type:Drilling EquipmentCertification:APIMaterial:Carbon SteelProcessing Type:ForgingUse:Well DrillingProduct Name1:3 Point Caliper GaugeProduct Name2:Three Point Caliper GaugeProduct Name3:Tripod Caliper GaugeMin Model No:80-130mmMax Model No:750-1050mmMaterial:High Carbon SteelBody:Hard-ChormeAccuracy:0.02mFunction1:Drill Bit/TubingFunction2:Centralizer Show More