SPECTRUM have developed Drill Collar Slips. These are available in three types covering all popular drill collar sizes in use i.e. from 3” OD to 14” OD. All SDTI make slips have an API taper of 4 inch per feet on the diameter fitted with circular buttons and with up right handles. These are manufactured out of best quality alloy steel. Its multi segment design ensures full wrap around the drill collars. Segments have extra-long back ensuring sufficient strength & support to the inserts. While handling drill collars it is recommended oil field practice to use multi-purpose safety clamps, for which these slips are made flat on top to ensure smooth fitting of multi-purpose clamp.