... 5/8 3.Grade:E,X,G,S 4.Upset:EU,IU,IEU Our company supply high quality and API certified tool ... joint for drill pipes' connections. These tool joints are turned, bored and faced ... defects in the joint tools. The mechanical property of the tool joint is as follow.Tensile Strength: More than 827. ... More than 285 HBImpact Text: More than 54 J 5-1/2"H tool joint