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Oilfield dth bit a combination of convex and concave designs, the oilfield head design provides the benefits of both in all applications. the second gage row shares the high loads on the gage inserts preserving life and reducing wear. …

Stud rods; srh55-t51: stud rod male/male adaptorsh 55 to t 51: $175.00 : srt51-r51: stud rod male/male adaptorst 51 to r 51: $156.60

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