... , with various spec. of Full size, Slim Hole, grand chamfer, Two-way camber, etc. With world top level equipments and technicians, the ... , AISI 5140OUT DIAMETER38.1mm (1.1/2")INNER DIAMETER23.81mm(15/16")UNIT WEIGHT0.56kgSURFACE TREATMENTPHOSPHATINGSPRAY WELD THICKNESS0.254mm~0.508mm ... 8", 3/4", 7/8", 1", 1.1/8"USAGEJOINNING TWO SUCKER RODS TOGETHER FOR DOWNHOLEOIL PUMPINGLIFE-SPANAt least 6 monthsBASIC ...