S.U.G Extension Rod Spec. : Extension rods, there are R22, R25, R28, R32, R38, T38, T45, T51, ST58, T60 threads, and different lengths of rods are available from 600mm to 6400mm usually. Features : With the longer steel tending to be larger in diameter, conventional extension steel is characterized by a duplicate thread on each end of the steel. Hexagonal and round cross sections are available.Pls check the following conventional specifications of the extention rods SUG produced.R22 thread extension rod length 6-10 ft R25 thread extension rod length 3-10 ft R28 thread extension rod length 10 ft R32 thread extension rod length 3-12 ft R32 thread Guide tube length 6-10 ft R32 thread MF rod length 3-14 ft T38 thread Guide tube length 6-12 ft T38 thread MF rod length 4-14 ft T38 thread extension rod length 4-12 ft T45 thread Guide tube length 6-12 ft T45 thread MF rod length 5-20 ft T45 thread extension rod length 10-20 ft T51 thread guide tube length 6-12 ft T51 thread MF rod length 6-12 ft T51 thread extension rod length 12-14 ft ST58 thread guide tube and MF rod P.S . SUG provides the tailor made /OEM/ODM rock drilling tools to satisfying your special practical needs ,we herein sincerely welcome your negotiation with us ,deeply thanks to your right choise and support on us ! | 
