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:

HOW TO: Easily Calibrate Disc, Miniature and Cylinder Probe Styli Using Calibration Spheres

As featured on Quality Digest Live's Tech Corner:

Dirk Dusharme, Editor in Chief at Quality Digest Magazine, walks us through the simple steps to calibrate a 16 mm disc probe, a 300 micron probe and a 2 mm cylinder probe using a 25 mm and 8 mm calibration sphere. Q-Mark offers all these products including the calibration spheres and mounting stands. 

Q-Mark styli are also available on