Crest Diameter and Ovality Gages – MRP® AIR Carbon Fiber

A Stronger, Lighter, and More Accurate MRP® Crest Diameter Gage… the MRP® AIR Thirty years ago, Gagemaker introduced the MRP® crest diameter and ovality gage which forever changed the industry. Now, we are redefining the industry again. Our MRP® AIR Crest Diameter Carbon Fiber Gage are stronger, lighter, and MORE ACCURATE than ever. Also, no […]


July 2016 Gage Report

IMTS 2016 Promises to Be the Best Yet! The Largest Industrial Tradeshow in the World! IMTS is the premiere tradeshow to see what’s new in the industry and keep you apprised of what’s available to help you do your job more efficiently and effectively. Gagemaker is proud to bring the revolutionizing MIC 360™ In-Process Diameter […]

Gage Tip of the Month

June 2016

An easy adjustment of your rails during assembly of an MRP-2001 will help you see the indicator better when inspecting external crest diameter, pitch diameter, or ovality. During setup, you simply position the rails so that any excess rail over-hang exists on the “fixed end”(the end not holding the indicator). Below you’ll find video instructions […]


Replace Rings & Plug Gages…    Save Time and Money with Better Accuracy…       Cover a Wide Range of Diameters and Thread Types… Gagemaker’s JSS® Thread Inspection System for ACME, ANSI & ISO Metric. Today’s dynamic manufacturing environment overwhelms old “GO/NO GO” methods and only our Straight Thread Inspection System consistently goes above and beyond. An […]

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 […]

Pitch Diameter Gages – Tapered

Pitch Diameter for Tapered Threads Now, operators are able to inspect both new and used pipe threads using precision Pitch Diameter Gages that allow them to pinpoint early signs of stress, perform preventative maintenance, and extend the life of their drill string connections. By measuring the pitch diameters, the operators can directly control the connection’s […]

Gage Tip of the Month

February 2015

For zeroing pitch diameter gages on an internal rod standard, Gagemaker recommends using our new RSV fixtures to align the contact points enabling easier, consistent, repeatable zeros. Normally to zero the gage, you must sweep the point on the standard in two directions to obtain the lowest possible indication. To consistently find the ideal setting […]

Small Diameter Gages

Small Diameter Internal Functional Size/Pitch Diameter Inspection – (⅝” (.625″) to 1½” (1.500″) Diameters) Thread Rolls for Small Internal Diameter Functional Size Inspection Gagemaker offers matched precision ground thread rolls for a variety of small diameter thread types. Thread rolls attach directly to the gage. If you do not find your pitch or thread type […]

Pitch Diameter Gages – Straight

Pitch Diameter for Straight Threads, 0″ to 72″ Diameters Pitch Diameter is one of the most important inspections for nearly any thread. In the past, pitch diameter was ignored as long as the ring or plug gage threaded. Now, using Gagemaker gages, you have more control over threading connections of marginal quality. The process of […]

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 […]