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Type A drill collar slips(Woolley Style) are multi-segments slips.They can accommodate the changes of outer diameter after the abrasion of drip collar.They are with light weight,large handing scale and reliable quaitly.This kind of slips are designed and manufactured  according to API Spec 7K Specification for drill and well servicing equipment.

There are three types of DCS Drill Collar Slips:S,Rand L.They can accommodate drill collar from 3 inch(76.2mm) to 14 inch(355.6mm)O.D.

There are three model of type B rotary slips(woolley style):B short,B Long and X Long.
The unique torque transmitting design can directly transfer all the torque to the slips,avoiding the abrasion,prolonging the service life.The product is designed and manufactured according to API Spec 7K requirements.

There are three types of DU series Drill Pipe Slips:DU,DUL and SDU.They are with large handing range and light weight.Thereinto,SDU slips have larger contacting areas on the taper and higher resistance strength.They are designed and manufactured according to API 7K Specification for drilling and well servicing equipment.

Casing Slips Type UC-3 are multi-segment slips with of 3 in/ft on the diameter taper slips(except size 8 5/8"). Every segment of one slip is forced equally while working.Thus the casings could keep a better shape.They should work together with spiders and insert bowls with same taper.The slips are designed and manufactured according to API Spec 7K.