
SAME-DAY STYLI

ULTRA-FAST SERVICE

ALWAYS GUARANTEED

PROUDLY USA MADE

ISO 9001:2015 CERTIFIED

CUSTOM DESIGNS WELCOME
Same-Day Shipping Policy: Online orders received by 12:00 noon PT Monday through Friday usually ship the same day. If there is a delay, Q-Mark will notify you right away. Orders received after 12:00 noon PT may ship one business day later. Learn More.
PRODUCT CATEGORIES
CUSTOMERS LOVE OUR SERVICE
"I love working with your company, and I tell everyone that I use probes from Q-Mark."
Dr. Hy Tran
Sandia National Labs,
Albuquerque, NM
"Your customer service and product quality are why we will continue to order probes and accessories from Q-Mark."
Dwayne Anders
Thomas Instrument,
Brookshire, TX
"I just want you to know that the styli we ordered arrived safely, and the quality is exceptional."
Wayne Glasser
Doby Engineering, Sydney,
Australia
SERVING INDUSTRY LEADERS SINCE 1992










LATEST NEWS
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We have the fastest order fulfillment in the industry – averaging just 2.5 hours from receiving your order to shipping your product so you can super speed productivity.Read now
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Owner, Mark Osterstock, Explains Our Instant Quote Feature
Do you need a formal quote before you purchase? Our Instant Quote system makes it easy to create a quote instantly from your shopping cart.Read now -
Why Q-Mark’s Machine Tool Styli Are A Top Seller
Machine tool styli are surging in popularity thanks in part to automation and a ceramic stem that breaks upon impact serving as a fuse of sorts that protects expensive probe heads and products.Read now