BQ overshot is an integral part of the BQ Wireline drilling system.Once the BQ inner tube is full of core, the BQ overshot is lowered  to the bottom of the hole to lift BQ inner tube assembly to the top of the hole. BQ overshot has the EZY-Lock part to lock the lifting dogs that keeps the safety when lay down the BQ inner tube assembly.BQ overshot is drive by the wireline winch. BQ overshot is used for the B size surface diamond drilling application. 

BQ OVERSHOT, BQ EZY-LOCK OVERSHOT

BQ OVERSHOT SPARE PARTS KIT

REFERENCE PART ITEMS

BQ Overshot Assembly Eye Bolt, BQ Cable Swivel Collar, BQ Thrust Bearing Castle Hex Nut, 1/2" UNF Cotter Pin, 3/32" x 3/4" Hydraulic Grease Fitting Cable Swivel Body, BQ Jar Staff, BQ Jar Tube, BQ

Hex Nut, 9/16" UNC Nord-Lock Washer, 9/16" Over-Shot Cap, BQ Over-Shot Spring, BQ Over-Shot Sleeve, BQ, Compression Spring Ball, 11/32" Over-Shot Head, BQ Lifting Dog Compression Spring

Lifting Dog, BQ Plain Pin 1/2" X 1-1/2"  Spring Pin, 3/16" X 1-3/8" Locking Pin Nylok Set Screw, 3/8" x 3/4" Slotted Locking Sleeve, BQ BQ Overshot Spare Parts Kit Thrust Bearing Castle Hex Nut, 1/2" UNF Cotter Pin, 3/32" x 3/4" Hydraulic Grease Fitting Hex Nut, 9/16" UNC Ball, 11/32" Compression Spring Lifting Dog Compression Spring Lifting Dog, BQ Plain Pin 1/2" X 1-1/2"  Spring Pin, 3/16" X 1-3/8" Locking Pin Nylok Set Screw, 3/8" x 3/4"

REFERENCE PART#

C3546822 C25991 C25990 C25986 C25985 C44615 C17447 C44434 C3546821 C44435 C62904 C3548184 C3546823 C3544104 C3546883 C3545053 C3543772 C3546825 C6951 C6950 C42941 C29073

C3546747 C3545073 C15575 C3547249 C25986 C25985 C44615 C17447 C62904 C3543772 C3545053 C6951 C6950 C42941 C29073 C3546747 C3545073

REFERENCE PHOTOS