Coupling adaptors are female to female and used to adapt to a different thread than what you may currently be running. They are machined and heat treated blast-hole quality couplings. We keep a large variety in stock, though minimum order quantities may apply.
Not all adaptor combinations are in stock. Minimum order quantity may apply.
Hole Savers, Bit Adaptors, Coupling Adaptors or Sleeve Adaptors with any thread combination.
Special Order - Minimum Order of 12 Pieces.
Recover that expensive drill string, save that hole.