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Precision Measuring

Precision Measuring

Insize Precision Measuring & Inspection Tools

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L. DeWitt McCarter is an authorized Insize distributor. This department carries the Insize 2026 US line — hand measuring tools, gage blocks and thread gages, and inspection equipment from microscopes to hardness and torque testers — each listed under its Insize part number. Have the part number? Type it in the search bar (for example 1108-150) to land on the exact tool. Otherwise, pick a category below.

Hand Measuring Tools

Gages, Standards & Layout

Inspection & Test Equipment

Optical & Video InspectionMicroscopes, magnifiers, profile projectors, vision measuring systems, borescopes and videoscopes.Surface Roughness & Coating ThicknessRoughness testers and probes, roughness specimens, coating thickness gages.Ultrasonic Thickness & Flaw DetectionUltrasonic thickness gages, transducers, couplant and flaw detector.Hardness Testers & Test BlocksLeeb, Rockwell, Brinell, Vickers and Shore testers, durometers and certified test blocks.Force & Material TestingForce gages, spring testers, tension gages, test stands, universal testing machines, metallography.Torque Wrenches & TestersDigital, dial and preset torque wrenches, torque testers, multipliers and heads.Weights & ScalesCalibration weights and weight sets (classes E2, F1, F2, M1), weighing, counting and crane scales.Testing & Specialty InstrumentsSound, light, moisture, temperature and humidity meters, tachometers, multimeters, gloss meters.

Setup, Data & Accessories

Choosing the right tool

If you need to…Start withShop
Check an outside diameter or length at the machineDigital caliper, then an outside micrometer for tighter toleranceCalipers · Micrometers
Measure a bore or internal diameterThree-point internal micrometer, dial bore gage or telescoping gageBore & Inside Measurement
Check runout, flatness or alignmentDial or digital indicator on a magnetic stand; dial test indicator for tight spotsIndicators & Test Indicators · Stands, Holders & Accessories
Accept or reject a threaded partGO and NO GO thread ring or plug gages; 3-wires for pitch diameterThread Gages & Thread Measurement
Calibrate or zero your own toolsGage blocks, setting rings, micrometer setting standards, pin gagesGage Blocks, Pins & Setting Standards
Inspect small features without contactMeasuring microscope, profile projector or vision measuring systemOptical & Video Inspection

Before you order

  • Insize ranges are listed in inch and metric; most digital tools switch between the two.
  • ISO 17025 calibration certificates are available as separate part numbers on the 1108 digital calipers, 1311 dial calipers and 2307 dial indicators (CAL suffix), and on request for those series. Gage blocks, thread gages, setting rings and other standards list a manufacturer inspection certificate where Insize supplies one.
  • Wireless (WL) tools need a receiver; data-output tools need the matching cable. Both are under Data Collection & Wireless.
Need help choosing or a volume price?
Send the Insize part number or the size you need to measure and the quantity — we reply the same day. (210) 494-1997 · [email protected]
Request a Quote
  • Insize ISY-100-2001 precision measuring tool

    Insize ISY-100-2001 – Stand with Fine Adjustment, 2 Pcs

    Insize

    $37.43
    Insize ISY-100-2001 – Stand with Fi
    ISY-100-2001
    SKU:
    ISY-100-2001
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.15 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-2001
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6940561936131
    Package Weight:
    0.15 lb
    Package Length:
    0.63 in
    Package Width:
    0.63 in
    Package Height:
    2.17 in
    Feature 1:
    .63'DIA ×1.77~2.36”
    $37.43
  • Insize ISY-100-2003 precision measuring tool

    Insize ISY-100-2003 – Stand with Fine Adjustment, 2 Pcs

    Insize

    $42.18
    Insize ISY-100-2003 – Stand with Fi
    ISY-100-2003
    SKU:
    ISY-100-2003
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.24 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-2003
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6940561936148
    Package Weight:
    0.24 lb
    Package Length:
    0.63 in
    Package Width:
    0.63 in
    Package Height:
    2.76 in
    Feature 1:
    .79'DIA ×1.77~2.36”
    $42.18
  • Insize ISY-100-2301 precision measuring tool

    Insize ISY-100-2301 – Clamping Screw

    Insize

    $11.59
    Insize ISY-100-2301 – Clamping Scre
    ISY-100-2301
    SKU:
    ISY-100-2301
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.25 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-2301
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6940561936261
    Package Weight:
    0.25 lb
    Package Length:
    4 in
    Package Width:
    2 in
    Package Height:
    2 in
    Feature 1:
    .31' DIA×.79'
    $11.59
  • Insize ISY-100-27016 precision measuring tool

    Insize ISY-100-27016 – Support Head, Aluminum

    Insize

    $16.82
    Insize ISY-100-27016 – Support Head
    ISY-100-27016
    SKU:
    ISY-100-27016
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27016
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6928640393792
    Package Weight:
    0.11 lb
    Package Length:
    0.98 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    $16.82
  • Insize ISY-100-27018 precision measuring tool

    Insize ISY-100-27018 – Support Head, Nylon

    Insize

    $16.82
    Insize ISY-100-27018 – Support Head
    ISY-100-27018
    SKU:
    ISY-100-27018
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27018
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6928640393808
    Package Weight:
    0.11 lb
    Package Length:
    0.98 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    $16.82
  • Insize ISY-100-27026 precision measuring tool

    Insize ISY-100-27026 – Support Head, Aluminum

    Insize

    $16.82
    Insize ISY-100-27026 – Support Head
    ISY-100-27026
    SKU:
    ISY-100-27026
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27026
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6928640393846
    Package Weight:
    0.11 lb
    Package Length:
    0.98 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    $16.82
  • Insize ISY-100-27028 precision measuring tool

    Insize ISY-100-27028 – Support Head, Nylon

    Insize

    $16.82
    Insize ISY-100-27028 – Support Head
    ISY-100-27028
    SKU:
    ISY-100-27028
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27028
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6928640393853
    Package Weight:
    0.11 lb
    Package Length:
    0.98 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    $16.82
  • Insize ISY-100-27036 precision measuring tool

    Insize ISY-100-27036 – Support Head, Aluminum

    Insize

    $16.63
    Insize ISY-100-27036 – Support Head
    ISY-100-27036
    SKU:
    ISY-100-27036
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27036
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6928640395796
    Package Weight:
    0.11 lb
    Package Length:
    0.98 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    $16.63
  • Insize ISY-100-27038 precision measuring tool

    Insize ISY-100-27038 – Support Head, Nylon

    Insize

    $16.63
    Insize ISY-100-27038 – Support Head
    ISY-100-27038
    SKU:
    ISY-100-27038
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27038
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6928640395802
    Package Weight:
    0.11 lb
    Package Length:
    0.98 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    $16.63
  • Insize ISY-100-27046 precision measuring tool

    Insize ISY-100-27046 – Support Head, Aluminum

    Insize

    $16.63
    Insize ISY-100-27046 – Support Head
    ISY-100-27046
    SKU:
    ISY-100-27046
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27046
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6928640395833
    Package Weight:
    0.11 lb
    Package Length:
    0.98 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    $16.63
  • Insize ISY-100-27048 precision measuring tool

    Insize ISY-100-27048 – Support Head, Nylon

    Insize

    $16.63
    Insize ISY-100-27048 – Support Head
    ISY-100-27048
    SKU:
    ISY-100-27048
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27048
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6928640395864
    Package Weight:
    0.11 lb
    Package Length:
    0.98 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    $16.63
  • Insize ISY-100-27056 precision measuring tool

    Insize ISY-100-27056 – Support Head, Aluminum

    Insize

    $16.63
    Insize ISY-100-27056 – Support Head
    ISY-100-27056
    SKU:
    ISY-100-27056
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27056
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6940561902846
    Package Weight:
    0.11 lb
    Package Length:
    0.98 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    $16.63
  • Insize ISY-100-27058 precision measuring tool

    Insize ISY-100-27058 – Support Head, Nylon

    Insize

    $16.63
    Insize ISY-100-27058 – Support Head
    ISY-100-27058
    SKU:
    ISY-100-27058
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27058
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6940561903485
    Package Weight:
    0.11 lb
    Package Length:
    0.98 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    $16.63
  • Insize ISY-100-27066 precision measuring tool

    Insize ISY-100-27066 – Support Head, Aluminum

    Insize

    $18.15
    Insize ISY-100-27066 – Support Head
    ISY-100-27066
    SKU:
    ISY-100-27066
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.22 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27066
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6940561975130
    Package Weight:
    0.22 lb
    Package Length:
    1.97 in
    Package Width:
    1.38 in
    Package Height:
    0.79 in
    $18.15
  • Insize ISY-100-27068 precision measuring tool

    Insize ISY-100-27068 – Support Head, Nylon

    Insize

    $18.15
    Insize ISY-100-27068 – Support Head
    ISY-100-27068
    SKU:
    ISY-100-27068
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.22 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27068
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6940561975147
    Package Weight:
    0.22 lb
    Package Length:
    1.97 in
    Package Width:
    1.38 in
    Package Height:
    0.79 in
    $18.15
  • Insize ISY-100-27076 precision measuring tool

    Insize ISY-100-27076 – Support Head, Aluminum

    Insize

    $16.72
    Insize ISY-100-27076 – Support Head
    ISY-100-27076
    SKU:
    ISY-100-27076
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27076
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6940561903904
    Package Weight:
    0.11 lb
    Package Length:
    0.98 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    $16.72
  • Insize ISY-100-27078 precision measuring tool

    Insize ISY-100-27078 – Support Head, Nylon

    Insize

    $16.72
    Insize ISY-100-27078 – Support Head
    ISY-100-27078
    SKU:
    ISY-100-27078
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-27078
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6940561903928
    Package Weight:
    0.11 lb
    Package Length:
    0.98 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    $16.72
  • Insize ISY-100-3003 precision measuring tool

    Insize ISY-100-3003 – Vertical Square Column, 2 Pcs

    Insize

    $233.70
    Insize ISY-100-3003 – Vertical Squa
    ISY-100-3003
    SKU:
    ISY-100-3003
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.66 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-3003
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    B
    EAN:
    6940561936247
    Package Weight:
    0.66 lb
    Package Length:
    11.42 in
    Package Width:
    3.15 in
    Package Height:
    1.57 in
    Feature 1:
    1.18 ×1.18×9.84'
    $233.70
  • Insize ISY-100-4001 precision measuring tool

    Insize ISY-100-4001 – Horizontal Spring Stand, 2 Pcs

    Insize

    $34.87
    Insize ISY-100-4001 – Horizontal Sp
    ISY-100-4001
    SKU:
    ISY-100-4001
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.22 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-4001
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6940561936155
    Package Weight:
    0.22 lb
    Package Length:
    1.97 in
    Package Width:
    1.38 in
    Package Height:
    0.79 in
    $34.87
  • Insize ISY-100-5001 precision measuring tool

    Insize ISY-100-5001 – Horizontal Screw Stand, 2 Pcs

    Insize

    $49.21
    Insize ISY-100-5001 – Horizontal Sc
    ISY-100-5001
    SKU:
    ISY-100-5001
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.26 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISY-100-5001
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6940561936162
    Package Weight:
    0.26 lb
    Package Length:
    1.77 in
    Package Width:
    1.77 in
    Package Height:
    1.38 in
    $49.21