Dimensional Calibration

Dimensional & Mechanical Instruments Calibration

Dimensional and Mechanical Calibration

  • Gage Blocks
  • Hardness Tester
  • Pin & Plug Gauges, Cylindrical
  • Surface Roughness Standards
  • Ring Gages, Cylindrical & Threaded
  • External Thread Gages (UN/UN STI/Metric)
  • Length Standards
  • Calipers
  • Micrometers (OD & ID)
  • Height Gauges
  • Depth Gauges
  • Indicators (Dial/Digital/Test)
  • Snap Gauges
  • Feeler (Thickness) Gages
  • Tape Measures & Steel Rules
  • Precision Levels & Steel Squares
  • Protractors & Angle Gages
  • Tachometers, Timers & Stopwatches
  • Coating Thickness & Thickness Meters

Dimensional Calibration

Dimensional gauges sometimes referred to as “hard gauges” are essential for measuring many different types of components and products manufactured in industries around the world. These important tools are often used in manufacturing processes on a daily basis and their results are depended upon to ensure quality and safety. Due to the frequency of use and demands placed on these tools, it is highly recommended that they be placed on a semi-annual or annual calibration interval.

PCS possesses a growing inventory of highly accurate measuring machines including Pratt & Whitney Labmasters, Universal super-micrometers and a wide range of other of state of the art measuring equipment. Our environmentally controlled laboratories are capable of calibrating gauges with uncertainties of less than 2 micro-inches. PCS is highly capable of efficiently and affordably calibrating your gage blocks, pin gages, plug gauges, ring gauges, and thread plug gauges (Click to learn more). In Addition to gage blocks, pins, plugs, rings and threads, we have the capability to calibrate 1-2-3 blocks, ball gauges, length standards, ID micrometers, dial indicators, digital indicators, test indicators, snap gauges, feeler gauges and thickness gauges with the fastest calibration turnaround times in the nation!

Hand Tool Calibration

Superior gauge masters are used to calibrate a wide range of measuring hand tools which are used in almost all manufacturing processes in today’s industry. Gage blocks are a primary part of our procedures for calibrating calipers, micrometers, bore gauges, depth gauges and height gauges. Depending on the size or type of the gauge we may also incorporate caliper masters, micrometer masters, height masters or master length standards to provide calibration points throughout the instrument measuring range. Tape measure and steel rule calibration is achieved by comparison to our NIST traceable master length standards and master steel rules. Precision levels, protractors, angle indicators and steel squares are calibrated in a similar fashon by comparison to master levels, master protractors, gauge blocks and angle blocks.

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Mechanical Calibration

Our mechanical calibration capabilities are wide ranging and include instruments such as hardness testers, tachometers, coating thickness meters, and many more. One of the most widely used pieces of mechanical testing equipment in today’s industry is the hardness tester. Hardness testing provides critical material performance data and validation. This data helps provide insight into the durability, strength, flexibility and capabilities for a variety of component types from raw materials to prepared specimens and finished goods. Hardness testing is used in a multitude of industries and plays a significant role in structural engineering, aerospace, automotive and medical device manufacturing processes. PCS has the capability to calibrate all types of hardness testers including Rockwell A, B, C, Micro-Hardness (Knoop and Vickers), Superficial and Brinell. Call our team today to schedule your next hardness tester calibration!

Through our vast experience and reputable resources we have successfully added the instruments above to an on-going list of additional calibration services. PCS continuously builds upon its calibration capabilities by researching new ways to apply our multifunctional test equipment to provide a comprehensive solution for your calibration requirements. If you do not see your equipment listed here, please contact us to discuss your specific needs.

PCS is a proud distributor of Mitutoyo, Starrett, and Spi measuring equipment manufacturers and can help with replacement or new equipment needs.

On-Site Calibration Services

At PCS, we provide on-site calibration services to customers located in Tennessee, Virginia, Alabama and Kentucky. If your facility is near one of the following locations, we can perform your required Dimensional and Mechanical calibration services on-site:

  • Knoxville, TN
  • Johnson City, TN
  • Nashville, TN
  • Cookeville, TN
  • Bristol, TN
  • Murfreesboro, TN
  • Kingsport, TN
  • Chattanooga, TN
  • Abingdon, VA
  • Huntsville, AL
  • Decatur, AL
  • Lexington, KY
  • Louisville, KY

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Accreditation and Documentation

All calibrations are traceable to the SI through NIST, (National Institute of Standard and Technology) and include “long form” calibration certificates with as-found/as-left data. ISO/IEC-17025 accredited calibration is available upon request. We also offer a web based calibration interface, “e-certificates” that gives you access to electronic copies of your calibration certificates which can be viewed and printed at your convenience. Standard turnaround time is 48 hours.

Cylindrical Pin Gages, Plug Gages, Ring Gages

PCS has the capability to calibrate all classes of Go, No-Go and Master cylindrical pin, plug and ring gages, XX – ZZ. These gauges are very simple, but also very effective. With proper use, these precision tools can measure to a high degree of accuracy. Pin and plug gage calibration is performed by mastering the Universal Supermicrometer with our high precision gage blocks and then measuring the outer diameter. Ring gage calibration is performed by mastering the Universal Supermicrometer with our high precision master ring gages and then measuring the inner diameter with ruby tipped indicators at 0 deg top-middle-bottom and 90 deg top-middle-bottom positions.

Pin, plug and ring gages should be calibrated at least once per year and, if used excessively, this interval should be increased accordingly. Taking proper care of these gauges will help to maintain their calibration and over all life. After use, remove all fingerprints with a lint free cloth and apply a small amount of lubricant to prevent rust. Never force a pin or plug gage in to a hole or force a gage or part through the hole of a ring gage. This will cause galling: metal transferred from one part to another. Galling greatly decreases the accuracy of your gage.

Thread Plug Gages

PCS has the capability to calibrate all classes of standard UN, Metric, and NPT thread plug gages. Calibration is achieved with precision thread wires and the aid of software compatible to our Universal Supermicrometer to produce accurate results for Go and No-Go major and pitch diameters.

Pin and Ring Gauge tolerances:
Tolerance Class
Inch Diameter
.010″ – .825″ .000010″ .000020″ .000040″ .000070″ .0001″ .0002″
.825″ – 1.510″ .000015″ .000030″ .000060″ .000090″ .00012″ .00024″
1.510″ – 2.510″ .000020″ .000040″ .000080″ .00012″ .00016″ .00032″
2.510″ – 4.510″ .000025″ .000050″ .0001″ .00015″ .0002″ .0004″
4.510″ – 6.510″ .000033″ .000065″ .00013″ .00019″ .00025″ .0005″
6.510″ – 9.010″ .000040″ .000080″ .00016″ .00024″ .00032″ .00064″
9.010″ – 12.010″ .000050″ .0001″ .0002″ .0003″ .0004″ .0008″
Metric Diameter
.254 mm – 20.96 mm .00025 mm .00051 mm .00102 mm .00178 mm .00254 mm .00508 mm
20.96 mm – 38.35 mm .00038 mm .00076 mm .00152 mm .00229 mm .00305 mm .00610 mm
38.35 mm – 63.75 mm .00051 mm .00102 mm .00203 mm .00305 mm .00406 mm .00816 mm
63.75 mm – 114.55 mm .00064 mm .00127 mm .00254 mm .00381 mm .00508 mm .01016 mm
114.55 mm – 165.35 mm .00084 mm .00165 mm .00330 mm .00483 mm .00635 mm .01270 mm
165.35 mm – 228.85 mm .00102 mm .00203 mm .00406 mm .00610 mm .00813 mm .01626 mm
228.85 mm – 305.05 mm .00127 mm .00254 mm .00508 mm .00762 mm .01016 mm .02032 mm

Tolerance Direction

Cylindrical Ring Gage Go Member is to the minus side, Nogo Member is to the plus side.

Cylindrical Plug Gage Go Member is to the plus side, Nogo Member is to the minus side.

Master Gages Tolerance is split 50/50