Pitch Diameter

Pitch diameter is perhaps the most important element with regards to whether two parts will screw together. Pitch diameter is the distance from the pitchline to the corresponding pitchline located 180 degrees around. All threads have a pitch diameter whether they are a straight or tapered thread. However, some threads’ pitch diameters are actually measured […]

Premium Connection Inspection

As drilling requirements become more difficult and as the demand for performance increases, companies respond with new and improved connection designs to meet those customer demands. When companies design new proprietary connections their first call is to Gagemaker to discuss gauging requirements. Over the past several decades, Gagemaker has designed and built gauging solutions that ensure […]

Specialty Items

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 […]

Crest Diameter and Ovality Gages – MRP®

Thirty years ago, Gagemaker introduced the MRP® crest diameter and ovality gage which forever changed the industry. Today, the MRP® series of gages is the industry standard worldwide. Whether you call it Crest Diameter, Root Diameter, or Ball PD, Pitch Diameter governs the strength of the actual thread assembly and ensures API dimensional measurement specs […]