A-BTW NTW HTW Full Hole Locking Coupling with tang
B-BTW NTW HTW Full Hole Locking Coupling
C-BTW NTW HTW Conventional Locking Coupling with tang
D-BTW NTW HTW Conventional Locking Coupling
NOTE:
(1)Conventional type locking coupling has carbide pads
(2) Full hole type locking coupling is surface hardened
(3)The box thread of locking coupling is decided by the drill rod thread
BTW NTW HTW Nonimal Weight | kg | Ibs |
BTW Locking Coupling(approx.) | 1.20 | 2.65 |
NTW Locking Coupling(approx.) | 1.80 | 3.97 |
HTW Locking Coupling(approx.) | 3.00 | 6.61 |