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Typically, if an internal threaded part is cut too large (too much material removed during threading), it ends up being rejected or scrapped. Because API RSC threads are tapered, moving the shoulder back makes the “over-sized” thread essentially “smaller.” When cutting/inspecting an internal API box rotary shouldered connection, it is not necessary to scrap the […]
Coupling Alignment Internal Deep Reach Bore Internal deep reach bore gages allow the difficult measuring of pitch diameter deep inside a small diameter product. For measuring larger deep diameters, contact point extension rods can be attached. The DB series of gages are our internal deep reach bore gages. One set of contact points and one […]