BWL BWL-U wireline overshot for surface drilling mineral exploration geotechnical environmental drilling
BQ NQ HQ PQ BQU NQU HQU NQ3 HQ3 PQ3
When the inner-tube is full, a device called an overshot is lowered down the hole via a wireline cable and brought to the surface by use of a winch.
BWL Overshot
BWL Overshot Assembly | |||
Item | Part # | Description | |
1-24 | 3546822 | BWL Overshot Assembly | |
1 | 25991 | Eye Bolt | |
2 | 25990 | Cable Swivel Collar | |
3 | 25986 | Thrust Bearing | |
4 | 25985 | Castle Hex Nut, 1/2" UNF | |
5 | 44615 | Cotter Pin, 3/32" x 3/4" | |
6 | 17447 | Hydraulic Grease Fitting | |
7 | 44434 | Cable Swivel Body, BWL | |
8 | 3546821 | Jar Staff, BWL | |
9 | 44435 | Jar Tube, BWL | |
10 | 62904 | Hex Nut, 9/16" UNC | |
11 | 3548184 | Nord-Lock Washer, 9/16" | |
12 | 3546823 | Over-Shot Cap, BWL, | |
13 | 3544104 | Over-Shot Spring, BWL, | |
14 | 3546883 | Over-Shot Sleeve, BWL, | |
15 | 3545053 | Compression Spring | |
16 | 3543772 | Ball, 11/32" | |
17 | 3546825 | Over-Shot Head, BWL | |
18 | 6951 | Compression Spring | |
19 | 6950 | Lifting Dog, BWL | |
20 | 42941 | Plain Pin 1/2" x 1-1/2" | |
21 | 29073 | Coiled Pin, 3/16" x 1-3/8" | |
22 | 3546747 | Locking Pin | |
23 | 3545073 | Nylok Set Screw, 3/8" x 3/4" | |
24 | 15575 | Locking Sleeve, BWL |
NOTE:
*BWL-U overshot is also available