elements in this way a quick determination may be made without measurement as to whether the joint can be refaced or require re machining application_number US 29207202 A description 0016 fig1 and 2 are provided to show a prior art tool joint bench mark in order to gain a clearer understanding of the indicator of the present invention a tool joint pin 11 for a drill pipe member has a cylindrical surface 13 containing an inner bore not shown external threads 15 are formed on the end of the cylindrical surface 13 the threads 15 have a first end 15 a located at the extreme end of the tool joint pin 11 the threads 15 extend along the tool joint 11 for a selected distance terminating at a second end 15 b the threads 15 are tapered resulting in a smaller outer diameter at the first end 15 a than at the second end 15 b a make up shoulder 17 is formed in the tool joint 11 a selected distance from the gage point of the threads 15 and inward from the end 15 b the make up shoulder 17 is an annular surface located in a plane perpendicular to the axis of the tool joint pin 11 the make up shoulder 17 faces outwardly and has a bevel 19 formed at its intersection with the cylindrical surface 13 a cylindrical section 15 c is also defined between the end 15 b and a bench mark 27 the bench mark 27 is formed between the make up shoulder 17 and the cylindrical section 15 c the bench mark 27 faces outwardly and defines an edge contained in a plane that is parallel with the make up shoulder 17 as indicated by the arrows 33 in.