Dual-mode ratchet wrench
Dual-pawl full engagement reversible ratchet wrench
Dual-pawl ratcheting mechanism with provision for preventing paw
Dual-purpose quickly adjustable wrench
Dual-string tubing tong and method
Duct strap tool
Dumbell roller assembly for tong unit
Duplex drill pipe wrench apparatus and method for top...
Dynamometric key
Dynamometric screw-driver
Dynamometric wrench