Dimensional Calibration

Masters, Tool and Gage Calibration

Micrometer calibrationDimensional calibration services, including tool calibration and gauge calibration, are performed by the calibration lab at Laboratory Testing Inc. in the Philadelphia, PA (USA) area. Known as LTI Metrology, this leading, full-service calibration provider has the credentials and services to ensure your measuring hand tools and instruments operate precisely and efficiently:

  • A2LA accreditation
  • ISO 17025 certification
  • NIST traceability

Service for All Types of Instruments

LTI Metrology has been providing varied industries with dimensional calibration services and certified reports for over 25 years, including the following:

  • Measuring hand tool calibration from calipers, stop watches and micrometer calibration to angle plates and irons
  • Gage calibration
  • Calibration of masters and length standards

Designed for Reliable Accuracy

The dimensional calibration technicians at LTI Metrology work in a state-of-the-art, temperature and humidity controlled laboratory for the most accurate measurement. The room is maintained at 68°F ± 1°F  with 30-50% relative humidity. These technicians can calibrate to one tenth of a millionth of an inch.

Resources to Make Calibration Easier

LTI calibrates threaded ring gages and has an inventory of over 750 master set plugs. If you do not have the one needed for your ring gage calibration and we don’t have it in inventory, we can help you purchase the proper set plug through our relationship with manufacturers. Review our inventory of Calibration Set Plugs.

If Calibration is new to your company, or if you’re new to Calibration, pick up some helpful hints in the article, “Why and When to Calibrate”.

Dimensional / Mechanical Instruments Calibrated

Masters & Standards

  • Gage Blocks to 20 inches
  • Length Standards/Micrometer Standards to 120 inches
  • Pitch Micrometer Standards
  • Profilometer Standards
  • Surveillance Masters
  • Thread Set Plugs
  • Thread WiresDimensional calibration of gage blocks

Tool Calibration

  • Amplifier
  • Angle Plate/Angle Iron
  • Balls
  • Calipers (Dial, Digital, Vernier)
  • Footage Counters
  • Gauss Meter/Magnetometer
  • Indicators (Dial, Digital, Dial Test, Coaxial, Mikrokators)
  • Levels (Mechanics, Machinists, Precision, Tilting)
  • Micrometers
    • Bench, Bore, Depth, Groove, Head
    • Inside, Outside/Pipe/Uni/Point
    • Thread Pitch, Vee
    • Supermicrometers
  • Microscope
  • Optical Flats, Overlay, Parallel
  • Parallels
  • Penetrameters (Radiographic)
  • Profilometer
  • Protractors
  • Rules
  • Sine Bar, Plate, Vise
  • Squares (Combination, Cylindrical Square/Tapered, Machinist Steel)
  • Stop Watch
  • Straight Edge
  • Tape Measure

Gage Calibration (Gauge Calibration)

  • Bore Gages
  • Center Gages
  • Chamfer/Countersink Gages (Dial, Micrometer-type)
  • Density Meter Calibration
  • Depth Gages (Dial, Digital)
  • Durometer Calibration
  • Durometer Test Standard
  • Feeler Gages
  • Height Gages (Dial, Digital, Vernier)
  • Pin Gages
  • Planeness Gage Set
  • Plug Gages (English, Metric)
    • Pipe Thread (1-step, 3-step)
    • Plain Cylindrical (Classes Y,Z,X,XX)
    • Plain Reversible Cylindrical
    • Thread/NPSM (Setting, Standard, Working)
  • Radius Gages
  • Ring Gages – Set Plug Inventory
    • Adjustable Thread
    • Pipe Thread
    • Plain Cylindrical, Plain Taper
    • Thread Setting
  • Screw Pitch Gages
  • Snap Gages (Go/No-Go, Indicating/Snap)
  • Telescoping Gages
  • Thickness Gages (Dial/Pocket/Paper, Coating Thickness, Ultrasonic, Wet Film)

The Dimensional Calibration Process

Dimensional calibration is performed by comparing the performance output of a hand tool, gage or another measuring instrument with a measurement standard to confirm that the item produces results which meet or exceed that standard’s criteria. The details of these results are clearly reported on your Calibration Certificate, along with as found” and “as left” conditions, our NIST-traceable standards, A2LA accreditation and any adjustments or repairs made during tool or gage calibration.

Find Out About More Services

LTI Metrology provides accurate, timely and affordable tool calibration, gage calibration and calibration of masters. We are a full-service laboratory, offering repairs, replacement parts, new instruments and a complete menu of calibration services with Calibration Certificates. LTI Metrology is located in the Philadelphia area of Pennsylvania (USA) and offers order pick up and delivery for customers near our facility. Calibration and repair of many instruments can also be performed by our field technicians onsite at your company to minimize downtime. For a detailed list of our full-service calibration capabilities, see our Instrument Calibration and On-site Calibration pages.

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Tools & Resources

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Quality & Convenience

  • A2LA and NADCAP accreditations
  • ISO 17025 certification
  • Same day, next-day, 2nd-day Rush Services
  • Secure Portal to track orders and get certifications
  • Fast Certified Reports sent by email

Customer Testimonials

“Thank you for your prompt service and the personalized pick-up and delivery. I have inspected the samples provided and am impressed with the quality of work. I’m sure my customer will be pleased as well. I look forward to working with LTI in the future.”

Keith Donald
Fracture Technology Associates


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