简体中文
3-3/4" PUSH BLOCK, JUNK RING，6-3/4" - 4 TPI THREAD RING/INSERT
4" PUSH BLOCK, JUNK RING，6-3/4" - 4 TPI THREAD RING/INSERT
4-1/2" PUSH BLOCK, JUNK RING，6-3/4" - 4 TPI THREAD RING/INSERT
4" PUSH BLOCK, JUNK RING，7-3/4" - 3 TPI THREAD RING/INSERT
4-1/2" PUSH BLOCK, JUNK RING，7-3/4" - 3 TPI THREAD RING/INSERT
Pair with the Packing Nut Bar or ratchet for easier installation and removal of the retainer nut
