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DCS Drill Collar Slips come in three sizes: DCS-2 (3"-4 7/8"), DCS-R (4 1/2"-7"), DCS-L (5 1/2-14")

C-1 Drill Collar Slips in seven different sizes to fit drill collars from 3” - 12 3/4”  

The Type A Drill Collar Slip is available in six different slip sizes fit drill collars from 3" through 10 " Outside Diameter.