Q-Mark manufactures styli and accessories


 for the metrology and machine 


tool industries. 



Our products are manufactured in


California, USA. 



We offer same-day shipping of


all our catalog products. 


Custom designs are welcome.  

The Latest News:

End Styli Build-Up & Wear Forever with Diamond Styli

Q-Mark is pleased to offer precision diamond styli in nearly any 
standard thread size and configuration. Diamond styli are an excellent choice for demanding applications. Diamond sphere performance is unmatched when measuring hard, abrasive, or very soft surfaces. Which Diamond Styli should you use? Read More...

How to Design Your Own Probe in Minutes Online

Manufacturing Manager, Clint Clark of Q-mark Manufacturing walks us through how to Design Your Own Probe™ online. Design Your Own Probe™ is an interactive online tool that allows customers to design, proof and order their custom part online in just a few minutes.

Follow us on YouTube to learn more...


Q-Mark styli are also available on