EdgeLOCK™ Overshot Assemblies & Options
The EdgeLOCK overshot is a simple, self-locking, and compatible solution designed to reliably and efficiently retrieve the inner tube assembly. Offering a productive and safe alternative to conventional core drilling, the EdgeLOCK mechanism doesn’t require you to remember to stop and lock the inner tube assembly in place because gravity does it automatically.
Additionally, the EdgeLOCK overshot eliminates the need to manually lock in the head, keeping your fingers out of harm’s way in the process. As soon as you start to raise the overshot, the weight of the head pulls the lifting dogs into the locked position. The head remains “locked in” until the weight is removed, and you manually compress the lifting dogs to release.
With Di-Corp’s EdgeLOCK overshot locking system, safety comes first.
EdgeLOCK Overshot Assemblies product sheets

| Part Number | Description | Qty |
|---|---|---|
| 101169 | Overshot Assembly | – |
| 101809 | Overshot Head Assembly | – |
| 100518 | Cable Swivel Eye Bolt | 1 |
| 100519 | Cable Swivel Collar | 1 |
| 100520 | Thrust Bearing | 1 |
| 100521 | Castle Nut | 1 |
| 100522 | Cotter Pin | 1 |
| 100461 | Grease Fitting | 1 |
| 101157 | Cable Swivel Body | 1 |
| 101158 | Jar Staff | 1 |
| 101161 | Jar Tube Assembly | 1 |
| 101164 | Locking Sleeve | 1 |
| 101162 | Hex Nut, 9/16″ UNC | 1 |
| 101163 | Nord-Lock Washer | 1 |
| 101165 | Overshot Head Body | 1 |
| 100533 | Set Screw, 3/8″ UNF x 3/4″ NYLOK | 1 |
| 100888 | Compression Spring, Lifting Dog | 1 |
| 100889 | Lifting Dog | 2 |
| 101166 | Lifting Dog Pivot Pin | 1 |
| 101167 | Upper Sway Pin | 1 |
| 101558 | Spring Pin, 3/16″ x 1-3/8″ | 1 |
| 101168 | Pin Link | 2 |
| 100539 | Self-Locking Cap Screw | 4 |
| 100692 | Overshot Loading Fork Tool | 1 |
| 100774 | Overshot Loading Funnel | 1 |
| Part Number | Description | Qty |
|---|---|---|
| 100517 | Overshot Assembly | – |
| 100604 | Overshot Head Assembly | – |
| 100518 | Cable Swivel Eye Bolt | 1 |
| 100519 | Cable Swivel Collar | 1 |
| 100520 | Thrust Bearing | 1 |
| 100521 | Castle Nut | 1 |
| 100522 | Cotter Pin | 1 |
| 100461 | Grease Fitting | 1 |
| 100523 | Cable Swivel Body | 1 |
| 100524 | Jar Staff | 1 |
| 100525 | Jar Tube Assembly | 1 |
| 100534 | Locking Sleeve | 1 |
| 100526 | Hex Nut, 3/4″ UNC | 1 |
| 100527 | Nord-Lock Washer | 1 |
| 100528 | Overshot Head Body | 1 |
| 100533 | Set Screw | 1 |
| 100529 | Compression Spring, Lifting Dog | 1 |
| 100530 | Lifting Dog | 2 |
| 100531 | Lifting Dog Pivot Pin | 1 |
| 100532 | Sway Pin | 1 |
| 100535 | Pin Link | 2 |
| 100539 | Self-Locking Cap Screw | 4 |
| 100692 | Overshot Loading Fork Tool | 1 |
| 100689 | Overshot Loading Funnel | 1 |
| Part Number | Description | Qty |
|---|---|---|
| 100557 | Overshot Assembly | – |
| 100605 | Overshot Head Assembly | – |
| 100518 | Cable Swivel Eye Bolt | 1 |
| 100519 | Cable Swivel Collar | 1 |
| 100520 | Thrust Bearing | 1 |
| 100521 | Castle Nut | 1 |
| 100522 | Cotter Pin | 1 |
| 100461 | Grease Fitting | 1 |
| 100523 | Cable Swivel Body | 1 |
| 100524 | Jar Staff | 1 |
| 100525 | Jar Tube Assembly | 1 |
| 100534 | Locking Sleeve | 1 |
| 100526 | Hex Nut, 3/4″ UNC | 1 |
| 100527 | Nord-Lock Washer | 1 |
| 100536 | Overshot Head Body | 1 |
| 100533 | Set Screw | 1 |
| 100529 | Compression Spring, Lifting Dog | 1 |
| 100530 | Lifting Dog | 2 |
| 100531 | Lifting Dog Pivot Pin | 1 |
| 100532 | Sway Pin | 1 |
| 100535 | Pin Link | 2 |
| 100539 | Self-Locking Cap Screw | 4 |
| 100692 | Overshot Loading Fork Tool | 1 |
| 100690 | Overshot Loading Funnel | 1 |
| Part Number | Description | Qty |
|---|---|---|
| 100890 | Overshot Assembly | – |
| 100518 | Cable Swivel Eye Bolt | 1 |
| 100519 | Cable Swivel Collar | 1 |
| 100520 | Thrust Bearing | 1 |
| 100521 | Castle Nut | 1 |
| 100522 | Cotter Pin | 1 |
| 100461 | Grease Fitting | 1 |
| 100836 | Cable Swivel Body | 1 |
| 100838 | Shear Pin | 1 |
| 100884 | Upper Body | 1 |
| 100750 | Pump-In Seal | 2 |
| 100751 | Latch Body Seal Seat | 1 |
| 100452 | Stainless Steel Ball | 2 |
| 100468 | Landing Indicator Bushing, OD Groove | 1 |
| 100885 | Overshot Head Body | 1 |
| 100888 | Compression Spring | 1 |
| 100886 | Pivot Pin | 1 |
| 100887 | Sway Pin | 1 |
| 100889 | Lifting Dog | 2 |
| Part Number | Description | Qty |
|---|---|---|
| 100842 | Overshot Assembly | – |
| 100518 | Cable Swivel Eye Bolt | 1 |
| 100519 | Cable Swivel Collar | 1 |
| 100520 | Thrust Bearing | 1 |
| 100521 | Castle Nut | 1 |
| 100522 | Cotter Pin | 1 |
| 100461 | Grease Fitting | 1 |
| 100836 | Cable Swivel Body | 1 |
| 100838 | Shear Pin | 1 |
| 100837 | Upper Body | 1 |
| 100764 | Pump-In Seal | 2 |
| 100810 | Latch Body Seal Seat | 1 |
| 100452 | Stainless Steel Ball | 2 |
| 100468 | Landing Indicator Bushing, OD Groove | 1 |
| 100839 | Overshot Head Body | 1 |
| 100529 | Compression Spring | 1 |
| 100840 | Pivot Pin | 1 |
| 100841 | Sway Pin | 1 |
| 100530 | Lifting Dog | 2 |
| Part Number | Description | Qty |
|---|---|---|
| 102483 | Overshot Assembly | – |
| 100518 | Cable Swivel Eye Bolt | 1 |
| 100519 | Cable Swivel Collar | 1 |
| 100520 | Thrust Bearing | 1 |
| 100521 | Castle Nut | 1 |
| 100522 | Cotter Pin | 1 |
| 100461 | Grease Fitting | 1 |
| 100836 | Cable Swivel Body | 1 |
| 100838 | Shear Pin | 1 |
| 102482 | Upper Body | 1 |
| 100765 | Pump-In Seal | 2 |
| 100822 | Latch Body Seal Seat | 1 |
| 100452 | Stainless Steel Ball | 2 |
| 100468 | Landing Indicator Bushing, OD Groove | 1 |
| 102481 | Overshot Head Body | 1 |
| 100529 | Compression Spring | 1 |
| 101498 | Pivot Pin | 1 |
| 100807 | Sway Pin | 1 |
| 100530 | Lifting Dog | 2 |
