The Junk Sub (Fishing Cup) is engineered to capture and remove heavy debris that cannot be circulated out of oil well bores. This essential downhole tool prevents heavy objects from settling at the bottom, protecting drill bits and maintaining well-bore cleanliness.

• Removes heavy debris including carbide teeth, drill bit fragments, and bearings
• Prevents cuttings from settling at well bottom during milling or drilling operations
• Extends drill bit service life and reduces unexpected damage
• Maintains clean well-bore bottom for optimal drilling performance

The tool features an external bowl with larger outer diameter that reduces annular space, directing fluid flow through the cup. The mandrel diameter at the cup mouth creates larger annular space, generating fluid swirl that captures heavy objects as fluid capacity suddenly reduces at the bottom.

Manufactured from 4140HT or 4145M alloy steel with API 7-1 certification. Available in standard (10"), long (20"), and extra long (30") cup depths to suit various well conditions.

When ordering, please specify:

• Hole Size or Desired Cup OD
• API connection size (e.g., 4-1/2" API REG pin up x 4-1/2" API REG box down)
• Length of cup: 10", 20" or 30"

We provide comprehensive fishing tool solutions manufactured under API Spec 7 standards, including Safety Joints, Fishing Magnets, Overshots, Releasing Spears, Fishing Jars (3 1/2" to 9 1/2" OD), Fishing Multifunction Tools, Casing Spears, Taper Taps, Die Collars, Jar Intensifiers, Junk Subs, Hydraulic Junk Retrievers, Mill Shoes, and Reverse Circulating Junk Baskets.