The Roller Kelly Bushing are designed and manufactured
according to API Spec7K.
HDP, Sq. / Hex 3" to 6" Kelly
MDS, Sq. 2 1/2" to 5 1/4" Kelly
MDS, Hex. 3" to 4 1/2" Kelly
MDP, Sq. 2 1/2" to 4 1/4" Kelly
MDP, Hex. 3" to 4 1/4" Kelly
●Model:
HDS, Sq. / Hex 2-1/2" to 6" KellyHDP, Sq. / Hex 3" to 6" Kelly
MDS, Sq. 2 1/2" to 5 1/4" Kelly
MDS, Hex. 3" to 4 1/2" Kelly
MDP, Sq. 2 1/2" to 4 1/4" Kelly
MDP, Hex. 3" to 4 1/4" Kelly
