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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 4130-4 precision measuring tool

    Insize 4130-4 – Metric Thread Plug Gage, Go and No Go, M4x0.7

    Insize

    $48.74
    Insize 4130-4 – Metric Thread Plug
    4130-4
    SKU:
    4130-4
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-4
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640339981
    Package Weight:
    0.04 lb
    Package Length:
    0.98 in
    Package Width:
    0.98 in
    Package Height:
    3.5 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Class 6H.
    Feature 3:
    Standard ISO1502.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $48.74
  • Insize 4130-42 precision measuring tool

    Insize 4130-42 – Metric Thread Plug Gage, Go and No Go, M42x4.5

    Insize

    $195.70
    Insize 4130-42 – Metric Thread Plug
    4130-42
    SKU:
    4130-42
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.91 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-42
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640340185
    Package Weight:
    1.91 lb
    Package Length:
    8.66 in
    Package Width:
    2.36 in
    Package Height:
    2.36 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Class 6H.
    Feature 3:
    Standard ISO1502.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $195.70
  • Insize 4130-45 precision measuring tool

    Insize 4130-45 – Metric Thread Plug Gage, Go and No Go, M45x4.5

    Insize

    $198.55
    Insize 4130-45 – Metric Thread Plug
    4130-45
    SKU:
    4130-45
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.00 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-45
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640340192
    Package Weight:
    2 lb
    Package Length:
    7.68 in
    Package Width:
    1.97 in
    Package Height:
    1.97 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Class 6H.
    Feature 3:
    Standard ISO1502.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $198.55
  • Insize 4130-48 precision measuring tool

    Insize 4130-48 – Metric Thread Plug Gage, Go and No Go, M48x5

    Insize

    $209.95
    Insize 4130-48 – Metric Thread Plug
    4130-48
    SKU:
    4130-48
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.31 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-48
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640340208
    Package Weight:
    2.31 lb
    Package Length:
    8.66 in
    Package Width:
    2.36 in
    Package Height:
    2.36 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Class 6H.
    Feature 3:
    Standard ISO1502.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $209.95
  • Insize 4130-5 precision measuring tool

    Insize 4130-5 – Metric Thread Plug Gage, Go and No Go, M5x0.8

    Insize

    $48.74
    Insize 4130-5 – Metric Thread Plug
    4130-5
    SKU:
    4130-5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-5
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640339998
    Package Weight:
    0.04 lb
    Package Length:
    3.35 in
    Package Width:
    0.87 in
    Package Height:
    0.87 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Class 6H.
    Feature 3:
    Standard ISO1502.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $48.74
  • Insize 4130-52 precision measuring tool

    Insize 4130-52 – Metric Thread Plug Gage, Go and No Go, M52x5

    Insize

    $222.30
    Insize 4130-52 – Metric Thread Plug
    4130-52
    SKU:
    4130-52
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.09 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-52
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640340215
    Package Weight:
    3.09 lb
    Package Length:
    2.28 in
    Package Width:
    2.28 in
    Package Height:
    8.46 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Class 6H.
    Feature 3:
    Standard ISO1502.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $222.30
  • Insize 4130-56 precision measuring tool

    Insize 4130-56 – Metric Thread Plug Gage, Go and No Go, M56x5.5

    Insize

    $237.50
    Insize 4130-56 – Metric Thread Plug
    4130-56
    SKU:
    4130-56
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    4.37 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-56
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640340222
    Package Weight:
    4.37 lb
    Package Length:
    10.24 in
    Package Width:
    2.76 in
    Package Height:
    2.76 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Class 6H.
    Feature 3:
    Standard ISO1502.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $237.50
  • Insize 4130-6 precision measuring tool

    Insize 4130-6 – Metric Thread Plug Gage, Go and No Go, M6x1

    Insize

    $48.74
    Insize 4130-6 – Metric Thread Plug
    4130-6
    SKU:
    4130-6
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-6
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640340000
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.87 in
    Package Height:
    0.87 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Class 6H.
    Feature 3:
    Standard ISO1502.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $48.74
  • Insize 4130-60 precision measuring tool

    Insize 4130-60 – Metric Thread Plug Gage, Go and No Go, M60x5.5

    Insize

    $266.95
    Insize 4130-60 – Metric Thread Plug
    4130-60
    SKU:
    4130-60
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    4.19 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-60
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640340239
    Package Weight:
    4.19 lb
    Package Length:
    2.68 in
    Package Width:
    2.68 in
    Package Height:
    8.98 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Class 6H.
    Feature 3:
    Standard ISO1502.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $266.95
  • Insize 4130-7 precision measuring tool

    Insize 4130-7 – Metric Thread Plug Gage, Go and No Go, M7x1

    Insize

    $48.74
    Insize 4130-7 – Metric Thread Plug
    4130-7
    SKU:
    4130-7
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.07 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-7
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640340017
    Package Weight:
    0.07 lb
    Package Length:
    3.39 in
    Package Width:
    0.79 in
    Package Height:
    0.79 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Class 6H.
    Feature 3:
    Standard ISO1502.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $48.74
  • Insize 4130-8 precision measuring tool

    Insize 4130-8 – Metric Thread Plug Gage, Go and No Go, M8x1.25

    Insize

    $48.74
    Insize 4130-8 – Metric Thread Plug
    4130-8
    SKU:
    4130-8
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.07 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-8
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640340024
    Package Weight:
    0.07 lb
    Package Length:
    0.98 in
    Package Width:
    0.98 in
    Package Height:
    3.86 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Class 6H.
    Feature 3:
    Standard ISO1502.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $48.74
  • Insize 4130-9 precision measuring tool

    Insize 4130-9 – Metric Thread Plug Gage, Go and No Go, M9x1.25

    Insize

    $48.74
    Insize 4130-9 – Metric Thread Plug
    4130-9
    SKU:
    4130-9
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.08 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-9
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640340031
    Package Weight:
    0.08 lb
    Package Length:
    3.74 in
    Package Width:
    0.63 in
    Package Height:
    0.63 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Class 6H.
    Feature 3:
    Standard ISO1502.
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $48.74
  • Insize 4130-S7 precision measuring tool

    Insize 4130-S7 – Metric Thread Plug Gage Set, Go and No Go, 6H, ISO 1502, 7 Pcs

    Insize

    $332.50
    Insize 4130-S7 – Metric Thread Plug
    4130-S7
    SKU:
    4130-S7
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.02 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4130-S7
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640340246
    Package Weight:
    1.02 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    Supplied with Go and No-Go gages together.
    Feature 2:
    Standard ISO1502
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $332.50
  • Insize 4131-102 precision measuring tool

    Insize 4131-102 – American Standard Thread Plug Gage, Go and No Go, 10-32UNF

    Insize

    $119.70
    Insize 4131-102 – American Standard
    4131-102
    SKU:
    4131-102
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4131-102
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640358937
    Package Weight:
    0.04 lb
    Package Length:
    3.43 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Class 2B.
    Feature 2:
    Standard ANSI/ASME B1.2
    Feature 3:
    Supplied with Go and No-Go gages together
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $119.70
  • Insize 4131-1A1 precision measuring tool

    Insize 4131-1A1 – American Standard Thread Plug Gage, Go and No Go, 1/2-13UNC

    Insize

    $129.20
    Insize 4131-1A1 – American Standard
    4131-1A1
    SKU:
    4131-1A1
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.14 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4131-1A1
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640359019
    Package Weight:
    0.14 lb
    Package Length:
    4.45 in
    Package Width:
    0.98 in
    Package Height:
    0.98 in
    Feature 1:
    Class 2B.
    Feature 2:
    Standard ANSI/ASME B1.2
    Feature 3:
    Supplied with Go and No-Go gages together
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $129.20
  • Insize 4131-1A2 precision measuring tool

    Insize 4131-1A2 – American Standard Thread Plug Gage, Go and No Go, 1/2-20UNF

    Insize

    $124.45
    Insize 4131-1A2 – American Standard
    4131-1A2
    SKU:
    4131-1A2
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.13 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4131-1A2
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640359026
    Package Weight:
    0.13 lb
    Package Length:
    4.09 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Class 2B.
    Feature 2:
    Standard ANSI/ASME B1.2
    Feature 3:
    Supplied with Go and No-Go gages together
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $124.45
  • Insize 4131-1B1 precision measuring tool

    Insize 4131-1B1 – American Standard Thread Plug Gage, Go and No Go, 1/4-20UNC

    Insize

    $107.35
    Insize 4131-1B1 – American Standard
    4131-1B1
    SKU:
    4131-1B1
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4131-1B1
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640358944
    Package Weight:
    0.05 lb
    Package Length:
    3.43 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Class 2B.
    Feature 2:
    Standard ANSI/ASME B1.2
    Feature 3:
    Supplied with Go and No-Go gages together
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $107.35
  • Insize 4131-1B2 precision measuring tool

    Insize 4131-1B2 – American Standard Thread Plug Gage, Go and No Go, 1/4-28UNF

    Insize

    $113.05
    Insize 4131-1B2 – American Standard
    4131-1B2
    SKU:
    4131-1B2
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4131-1B2
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640358951
    Package Weight:
    0.05 lb
    Package Length:
    3.43 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Class 2B.
    Feature 2:
    Standard ANSI/ASME B1.2
    Feature 3:
    Supplied with Go and No-Go gages together
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $113.05
  • Insize 4131-3B1 precision measuring tool

    Insize 4131-3B1 – American Standard Thread Plug Gage, Go and No Go, 3/4-10UNC

    Insize

    $173.85
    Insize 4131-3B1 – American Standard
    4131-3B1
    SKU:
    4131-3B1
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.42 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4131-3B1
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640359064
    Package Weight:
    0.42 lb
    Package Length:
    5.71 in
    Package Width:
    1.57 in
    Package Height:
    1.57 in
    Feature 1:
    Class 2B.
    Feature 2:
    Standard ANSI/ASME B1.2
    Feature 3:
    Supplied with Go and No-Go gages together
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $173.85
  • Insize 4131-3B2 precision measuring tool

    Insize 4131-3B2 – American Standard Thread Plug Gage, Go and No Go, 3/4-16UNF

    Insize

    $144.40
    Insize 4131-3B2 – American Standard
    4131-3B2
    SKU:
    4131-3B2
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.38 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4131-3B2
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640359071
    Package Weight:
    0.38 lb
    Package Length:
    5.12 in
    Package Width:
    1.57 in
    Package Height:
    1.57 in
    Feature 1:
    Class 2B.
    Feature 2:
    Standard ANSI/ASME B1.2
    Feature 3:
    Supplied with Go and No-Go gages together
    Feature 4:
    Supplied with manufacturer inspection certificate.
    $144.40