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Send your tool to us!

Flexible Assembly Systems is a worldwide leader in calibration and service of assembly tools. Whether or not you purchased your tool from us, we keep your tools maintained within proper manufacturing quality guidelines. If you have any follow up questions to the links below, feel free to contact us, or call us at (619) 287-7000.

Tool Service & Calibration

Get a Flexible technician servicing and calibrating your tools quickly and effectively.

NIST Calibration

We provide NIST (National Institute of Standards and Technology) Traceable certificates for proper auditing and maintenance of your tools.

Flex Warranty

Protect your tools further with the Flex Warranty! Keep your tools safe when the manufacturer warranties come up short. Bad luck deserves good coverage.

Tool Service and Calibration

Flexible Assembly Systems Inc. provides you with the highest quality repair service and calibration. Our technicians and specialists can custom design a repair and calibration program to provide a solution to suit your electric and air tool repair and preventive maintenance requirements. Please call us or contact us online to find out what which maintenance repair programs will work best for you. It is our goal to design our repair procedures around your needs and requirements so that our service center integrates seamlessly with your production.

To get your tools repaired or evaluated:

  • Fill out the Repair and Calibration form
  • Send tool(s) and form(s) to:
    • ATTN: Tool Repair Calibration
      Flexible Assembly Systems Inc.
      849 Industry Drive
      Tukwila, WA 98188
      United States of America

NIST Calibration

We offer NIST Traceable Calibration compliant with the requirements of ANSI/ISO/ASQ Q9001-2000. Certifications are available for electric and air screwdriver calibration, torque screwdriver calibration, torque wrench calibration, and torque tester calibration. Our expertise includes:

  • Computer generated Certificates of Calibration
  • Calibration Labels
  • Automatic Recall Notice Certificates for equipment approaching their calibration due dates.
Submit your tool for repair or calibration

Tool Repair Service

Our certified technicians will be able to assist you with the service and calibration of your tools. No matter the situation, our technicians are ready to respond to your needs. Our service is unmatched and our technicians are the best in the industry. Our technicians are factory trained and certified. To make sure you are getting the best quality out of your service we use only genuine factory parts.

Why use genuine replacement parts?

  • Longer lasting
  • Correct design & specification
  • OEM parts meet warranty standards
  • Greater assurance of quality

We offer full service factory repair you at a fair price. Keep in mind that there is a $60 evaluation fee, this fee is waived once you proceed with having your repair work done with us. There also, may be a return shipping charge.

Before you send the item to our shop, please be sure the tool is fully assembled. If a partial tool is sent to us, there may be additional fees.

Servicing the following tools

  • Pneumatic Screwdrivers
  • Electric Screwdrivers
  • Torque Screwdrivers
  • Torque Testers
  • Torque Wrenches
  • Torque Multipliers
  • Pulse Tools
  • Air Nutrunners
  • Cordless Torque Drivers
  • Impact Wrenches
  • Air Hoists
  • Air Balancers
  • DC Tools


  • $75 Evaluation Fee*
  • DC, Cordless or programmable tools - $200/hr**
  • Clutch, impacts or grinders - $120/hr**

NIST Certificate

We provide NIST (National Institute of Standards and Technology) Traceable certificates for proper auditing and maintenance of your tools.

NIST promotes U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology


  • $110 Calibration and Certification

Service & Calibration Line Card

When purchasing a product from Flexible Assembly Systems, Inc., you can be assured that your product is of the highest performance quality. That same quality will continue when your products require replacement parts or service.

General Line Card
WA State Line Card

*Evaluation Fee waived if customer proceeds with repair

**Additional Parts will be added with hourly rate

**Please Note: You will receive a Repair & Calibration estimate within 1-3 days after receipt of the tool(s). Authorization required before any repair work is done. Please note that all returned unrepaired tools will be sent back disassembled. All unrepaired tools & equipment will be charged a 1/2 hour of labor.

Privacy Statement: Flexible Assembly Systems Inc will never release your information to a third party. The information gathered on this form is used solely for the purpose of contacting you to process your tool repair and tool calibration requests.