Phone :  832.754.8654            Email:



     Calibration Services

  • Optical Comparator                                                                                                                                                            
  • Vision Systems and Microscopes  
  • Rockwell Hardness Tester and Brinell Testers (calibrated to current ASTM standard )optcl.jpg
  • Granite Surface Plate Calibration and Resurfacing (calibrated to Federal Spec GGG-P-463c )
  • Tool Calibration  (micrometers, calipers, indicators,...etc )
  • Torque Wrench 
  • Gauge Blocks and Thread Plugs 
  • Pressure Gages
  • Temperature  ( ovens and furnaces )
  • Multimeters
  • Thermometer / Thermocouples
  • Digital Readout Systems ( for manual Mills, Lathes and Grinders )


Lonestar Calibration - Tool calibration service,surface plate calibration,optical comparator calibration,hardness tester calibration,tool calibration,Rockwell tester calibration,hardness tester, Microscope calibration,tool calibration,Houston,Texas,Austin,Texas,San Antonio,Texas,Corpus Christi,Texas, San Antonio, Texas, Dallas,Texas,Louisiana,Oklahoma,Arkansas.



  . Tools and Gauges  ( micrometers, calipers, indicators, ... etc )

. Optical Comparators   

.  Hardness Testers  

. Weight Scales





 General Information

  • Calibration Certifications traceable to N.I.S.T.
  • Quality Manual, Calibration Procedures, Certificates and Stickers are ISO 9001, ANSI Z540.3, and MIL-STD 45662A compliant.
  • Written procedures for all calibrations.IMG_20120831_101441.jpg
  • As Found/ As Left Condition ( Long Form)  recorded on certificates at no extra cost. 
  • Recall notification by phone/email.    
  • 3-5 day turn around on offsite Tool Calibration.
  • Onsite Tool Calibration service is available. 


About Us
Lonestar Calibration®   was established in 2009 to provide its customers with a quality service at an affordable price.   We have over 20 years experience in the calibration of tools and other precision measuring equipment.  We are proud to be a family owned and operated business.
Lonestar Calibration® is not now nor has it ever been affiliated in any way with Lonestar Scales and Calibration LLC.