Threaded Products
Slipper
The overshot is a tool used for thread drilling in rock drilling, which is mainly used to salvage the drill rod that falls in the hole and breaks. Products are divided into female thread-BT form, female thread-PFT form, male thread-PFT form. Common threads are R32, R32L, T35, T38, T38L, T45, T45L, T51, T51L, ST58, ST68. Among them, BT is the form of taper internal thread and PFT is the form of taper external thread.
| Slipper | |
| Sold form | Thread |
| Female thread-BT | R32 R32L T35 T38 T38L T45 T45L T51 T51L ST58 ST68 |
| Female Thread-PFT | R32 R35 T35 T38 T38L T45 T45L T51 ST58 ST58L ST68 ST68A |
| Male Thread-PFT | T38M T45M T51M |
| BT is an internal thread form. The PFT is in the form of an external thread. L for strengthening | |
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