T38-1220mm (4ft) thread extension MF drill rods are produced with round sections in all common thread designs, and in Male/Female (M/F) connections. All of our Jinquan's extension drill rods are heat-treated with carburization or high frequency, bombinated with phonemicization.
Product Name: MF Rods T38-Round39-T38
Description: T38 extension rod with coupling
T38 thread drill rods are made with best quality alloy steel bar, through advanced heat treatment technology.
Body Type: Round shape
Thread Type: T38 thread
Type : T38-Round39-T38