The short catch overshot is specifically designed to engage the exposed potion of a fish, such as upset collar, drill joint etc. to short to be engaged with conventional catch overshot.

The sucker rod overshot is a fishing tool designed to catch the sucker rod broken in oil tube or casing. The sucker rod overshot can catch different sizes of sucker rod when equipped with different sizes of slip or guide. The guide diameter can be enlarged when fishing in casing.

The slider slip spear is an internal fishing tool that not only used for fishing of fallen objects perforated such as drill pipe, tubing, wash pipe, liner, packer, water distributor etc., but also for reversing of stuck fallen objects or used with other tools such as jar and back-off tool.

The slip overshot is an unreleased tool designed to externally engage a fish. It not only can engage every kinds of oil tube, drill pipe, weight rod, long plumb, but also can reverse the stuck pipe string by giving torque to the stuck pipe string.

The finger type fishing basket is a simple structured and easy made general fishing tool specially used for fishing of down-hole irregular catches such as steel ball, valve seat, bolt, nut, paraffin cutter, tong insert, spanner and rubber etc.

The casing scarper is ideal for the removal of dirties that may be left over the inside wall of casing, such as solid cement, hard wax, various salt crystals or deposits, perforation burrs, iron oxide residues resulted from rusting, so as to make all down-hole tools pass through unblocked. Especially when a small circular clearance is available between the down-hole tools and casing inside diameter, the complete scrapping becomes more necessary before further working.
At the present time, scrapping of casing inside wall by casing scrapper in many leading oilfields of China has becomes an necessary step.