A 100-Year-Old Measurement Tool That is Still Used Today

As a method to get inspiration for topics for this column, I go back through old documents. As one can imagine, the basics of metrology were mostly developed in the early 20th century but have been refined and controlled to get where we are today. During this exploration I realized that we are rapidly closing…

Topic: How to Use a Digital Caliper Correctly | Mitutoyo USA

Calipers are essential measuring tools, widely used for their ease of use and 0.01 mm precision, making them a standard in the industry. Among them, digital calipers not only help prevent misreading but also serve as a key step toward IoT-driven measurement data collection. To support your precision needs, we’ve prepared an instructional video covering…

Are You Measuring “Average Roughness” Correctly?

There’s More to It Than You May Think Introduction Calibration labs frequently need to certify the average roughness (Ra) of calibration specimens or samples. This seemingly straightforward task, however, involves more than running a roughness gage across the surface and reading the Ra value. Variations in basic settings can result in Ra values that differ…

Squeeze Gaging

Machinists working strictly in metal-working shops do not have many occasions to gage the thickness of soft materials. But many of our readers work in supporting roles, helping to build or maintain the machines that produce textiles, plastic films, paper and other products that are compressible.  Even readers who work only with metals should realize…

Cold Root Rolling

COLD ROOT ROLLING is the process of burnishing the root radius of a previously cut thread, in a Rotary Shouldered Connection. READ MORE ABOUT COLD ROOT ROLLING

Gaging Tips with Master Rings and Engagements, Size Matters

WITH MASTER RINGS AND ENGAGEMENTS, SIZE MATTERS A master ring, or ring gage, is basically a bore of known dimension. The precision hole is often used as a setting master for variable inside-diameter gages (such as bore gages, air tooling and mechanical plug gages), for go/no-go mastering of fixed ID gages, and for go/no-go OD…

What is an SDS Sheet?

As a welding consumable manufacturer, Postle Industries take our responsibility in supporting our customers supply chain and compliance departments seriously. The most common documents required form us are a certificate of conformance (COC), and a Safety Data Sheet (SDS – formally known as an MSDS). The COC is a certificate of authenticity and quality, related…

Portable Brinell Tester

Portable Brinell Tester Chain Adapter

Unyielding Precision: Discover Rigid-Lock End Mills for Peak Performance!

Upgrade your machining game with our precision-engineered ballnose end mills designed for unmatched stability and performance. With our unique rigid-lock technology, experience superior tool rigidity and reduced vibration for cleaner cuts and longer tool life. Precision ground Single insert design allows for optimal finish and reduced runout compared to other systems Flat-bottom and Back-draft styles…