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Precision Measuring

Precision Measuring

Insize Precision Measuring & Inspection Tools

Authorized Insize distributor  |  Ships direct from Insize  |  Quote reply same day  |  Tool + accessory in one order: save 5%

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 3220-4 precision measuring tool

    Insize 3220-4 – Inside Micrometer, 3-4IN

    Insize

    $199.50
    Insize 3220-4 – Inside Micrometer,
    3220-4
    SKU:
    3220-4
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.96 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3220-4
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640328572
    Package Weight:
    0.96 lb
    Package Length:
    8.66 in
    Package Width:
    4.8 in
    Package Height:
    1.26 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Ratchet stop.
    Feature 3:
    Carbide measuring faces.
    Feature 4:
    Optional accessary: setting ring (part no. 6313), micrometer stand and clamp (part no. 6301 and 6301-1).
    $199.50
  • Insize 3221-12 precision measuring tool

    Insize 3221-12 – Tubular Inside Micrometer, 2-12IN

    Insize

    $358.15
    Insize 3221-12 – Tubular Inside Mic
    3221-12
    SKU:
    3221-12
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.53 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3221-12
    Product Family:
    Calipers
    Supplier Category Code:
    A
    EAN:
    6928640328657
    Package Weight:
    2.53 lb
    Package Length:
    13.31 in
    Package Width:
    7.91 in
    Package Height:
    1.73 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.0003+.00005(L/2)]', L=maximum measuring length (inch).
    Feature 3:
    Optional accessary: setting ring (part no. 6313), gage block accessory (part no. 6881), cylinder gage block (part no. 4001), caliper/height gage checker (part no. 6884).
    $358.15
  • Insize 3221-125 precision measuring tool

    Insize 3221-125 – Tubular Inside Micrometer, 1-1.25IN

    Insize

    $194.16
    Insize 3221-125 – Tubular Inside Mi
    3221-125
    SKU:
    3221-125
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.37 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3221-125
    Product Family:
    Calipers
    Supplier Category Code:
    A
    EAN:
    6928640356742
    Package Weight:
    0.37 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.0003+.00005(L/2)]', L=maximum measuring length (inch).
    Feature 3:
    Optional accessary: setting ring (part no. 6313), gage block accessory (part no. 6881), cylinder gage block (part no. 4001), caliper/height gage checker (part no. 6884).
    $194.16
  • Insize 3221-2 precision measuring tool

    Insize 3221-2 – Tubular Inside Micrometer, 1-2IN

    Insize

    $218.50
    Insize 3221-2 – Tubular Inside Micr
    3221-2
    SKU:
    3221-2
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.40 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3221-2
    Product Family:
    Calipers
    Supplier Category Code:
    A
    EAN:
    6928640328633
    Package Weight:
    0.4 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.0003+.00005(L/2)]', L=maximum measuring length (inch).
    Feature 3:
    Optional accessary: setting ring (part no. 6313), gage block accessory (part no. 6881), cylinder gage block (part no. 4001), caliper/height gage checker (part no. 6884).
    $218.50
  • Insize 3221-20 precision measuring tool

    Insize 3221-20 – Tubular Inside Micrometer, 8-20IN

    Insize

    $445.55
    Insize 3221-20 – Tubular Inside Mic
    3221-20
    SKU:
    3221-20
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.64 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3221-20
    Product Family:
    Calipers
    Supplier Category Code:
    A
    EAN:
    6928640328664
    Package Weight:
    2.64 lb
    Package Length:
    13.31 in
    Package Width:
    7.91 in
    Package Height:
    1.73 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.0003+.00005(L/2)]', L=maximum measuring length (inch).
    Feature 3:
    Optional accessary: setting ring (part no. 6313), gage block accessory (part no. 6881), cylinder gage block (part no. 4001), caliper/height gage checker (part no. 6884).
    $445.55
  • Insize 3221-200 precision measuring tool

    Insize 3221-200 – Tubular Inside Micrometer, 50-200MM, Graduation 0.01MM

    Insize

    $332.56
    Insize 3221-200 – Tubular Inside Mi
    3221-200
    SKU:
    3221-200
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.01 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3221-200
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640308338
    Package Weight:
    2.01 lb
    Package Length:
    12.09 in
    Package Width:
    6.97 in
    Package Height:
    1.73 in
    Feature 1:
    Accuracy: (6+L/50)μm. L=maximum measuring length (mm).
    Feature 2:
    L=maximum measuring length (mm).
    Feature 3:
    Optional accessary: setting ring (code 6312), gage block accessory (code 6881), cylinder gage block (code 4001), cliper/height gage checker (code 6884)
    $332.56
  • Insize 3221-25 precision measuring tool

    Insize 3221-25 – Tubular Inside Micrometer, 2-2.5IN

    Insize

    $200.51
    Insize 3221-25 – Tubular Inside Mic
    3221-25
    SKU:
    3221-25
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.73 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3221-25
    Product Family:
    Calipers
    Supplier Category Code:
    A
    EAN:
    6928640356759
    Package Weight:
    0.73 lb
    Package Length:
    7.68 in
    Package Width:
    4.61 in
    Package Height:
    1.69 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.0003+.00005(L/2)]', L=maximum measuring length (inch).
    Feature 3:
    Optional accessary: setting ring (part no. 6313), gage block accessory (part no. 6881), cylinder gage block (part no. 4001), caliper/height gage checker (part no. 6884).
    $200.51
  • Insize 3221-40 precision measuring tool

    Insize 3221-40 – Tubular Inside Micrometer, 8-40IN

    Insize

    $1,215.71
    Insize 3221-40 – Tubular Inside Mic
    3221-40
    SKU:
    3221-40
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    8.29 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3221-40
    Product Family:
    Calipers
    Supplier Category Code:
    A
    EAN:
    6928640328671
    Package Weight:
    8.29 lb
    Package Length:
    34.45 in
    Package Width:
    8.86 in
    Package Height:
    1.57 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.0003+.00005(L/2)]', L=maximum measuring length (inch).
    Feature 3:
    Optional accessary: setting ring (part no. 6313), gage block accessory (part no. 6881), cylinder gage block (part no. 4001), caliper/height gage checker (part no. 6884).
    $1,215.71
  • Insize 3221-8 precision measuring tool

    Insize 3221-8 – Tubular Inside Micrometer, 2-8IN

    Insize

    $324.90
    Insize 3221-8 – Tubular Inside Micr
    3221-8
    SKU:
    3221-8
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.01 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3221-8
    Product Family:
    Calipers
    Supplier Category Code:
    A
    EAN:
    6928640328640
    Package Weight:
    2.01 lb
    Package Length:
    13.31 in
    Package Width:
    7.91 in
    Package Height:
    1.73 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.0003+.00005(L/2)]', L=maximum measuring length (inch).
    Feature 3:
    Optional accessary: setting ring (part no. 6313), gage block accessory (part no. 6881), cylinder gage block (part no. 4001), caliper/height gage checker (part no. 6884).
    $324.90
  • Insize 3221-9 precision measuring tool

    Insize 3221-9 – Tubular Inside Micrometer, 8-9IN

    Insize

    $280.31
    Insize 3221-9 – Tubular Inside Micr
    3221-9
    SKU:
    3221-9
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.09 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3221-9
    Product Family:
    Calipers
    Supplier Category Code:
    A
    EAN:
    6928640356766
    Package Weight:
    1.09 lb
    Package Length:
    10.28 in
    Package Width:
    4.09 in
    Package Height:
    1.3 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.0003+.00005(L/2)]', L=maximum measuring length (inch).
    Feature 3:
    Optional accessary: setting ring (part no. 6313), gage block accessory (part no. 6881), cylinder gage block (part no. 4001), caliper/height gage checker (part no. 6884).
    $280.31
  • Insize 3222-12 precision measuring tool

    Insize 3222-12 – Tubular Inside Micrometer, 2-12IN

    Insize

    $293.55
    Insize 3222-12 – Tubular Inside Mic
    3222-12
    SKU:
    3222-12
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.65 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3222-12
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640328701
    Package Weight:
    1.65 lb
    Package Length:
    7.68 in
    Package Width:
    4.61 in
    Package Height:
    1.69 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.00005(3+n+L/2)]', n=number of rods, L=maximum measuring length (inch).
    Feature 3:
    Travel of micrometer head .5'
    Feature 4:
    Supplied with setting standards.
    Feature 5:
    Carbide measuring faces.
    $293.55
  • Insize 3222-20 precision measuring tool

    Insize 3222-20 – Tubular Inside Micrometer, 2-20IN

    Insize

    $369.55
    Insize 3222-20 – Tubular Inside Mic
    3222-20
    SKU:
    3222-20
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3222-20
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640328718
    Package Weight:
    3.05 lb
    Package Length:
    13.31 in
    Package Width:
    7.91 in
    Package Height:
    1.73 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.00005(3+n+L/2)]', n=number of rods, L=maximum measuring length (inch).
    Feature 3:
    Travel of micrometer head .5'
    Feature 4:
    Supplied with setting standards.
    Feature 5:
    Carbide measuring faces.
    $369.55
  • Insize 3222-24 precision measuring tool

    Insize 3222-24 – Tubular Inside Micrometer, 2-24IN

    Insize

    $311.26
    Insize 3222-24 – Tubular Inside Mic
    3222-24
    SKU:
    3222-24
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.23 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3222-24
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640356780
    Package Weight:
    3.23 lb
    Package Length:
    13.31 in
    Package Width:
    7.91 in
    Package Height:
    1.73 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.00005(3+n+L/2)]', n=number of rods, L=maximum measuring length (inch).
    Feature 3:
    Travel of micrometer head .5'
    Feature 4:
    Supplied with setting standards.
    Feature 5:
    Carbide measuring faces.
    $311.26
  • Insize 3222-25 precision measuring tool

    Insize 3222-25 – Tubular Inside Micrometer, 2-2.5IN

    Insize

    $173.98
    Insize 3222-25 – Tubular Inside Mic
    3222-25
    SKU:
    3222-25
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.96 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3222-25
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640356773
    Package Weight:
    0.96 lb
    Package Length:
    7.68 in
    Package Width:
    4.61 in
    Package Height:
    1.69 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.00005(3+n+L/2)]', n=number of rods, L=maximum measuring length (inch).
    Feature 3:
    Travel of micrometer head .5'
    Feature 4:
    Supplied with setting standards.
    Feature 5:
    Carbide measuring faces.
    $173.98
  • Insize 3222-40 precision measuring tool

    Insize 3222-40 – Tubular Inside Micrometer, 2-40IN

    Insize

    $1,107.70
    Insize 3222-40 – Tubular Inside Mic
    3222-40
    SKU:
    3222-40
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    4.70 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3222-40
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640328725
    Package Weight:
    4.7 lb
    Package Length:
    13.31 in
    Package Width:
    7.91 in
    Package Height:
    1.73 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.00005(3+n+L/2)]', n=number of rods, L=maximum measuring length (inch).
    Feature 3:
    Travel of micrometer head .5'
    Feature 4:
    Supplied with setting standards.
    Feature 5:
    Carbide measuring faces.
    $1,107.70
  • Insize 3222-6 precision measuring tool

    Insize 3222-6 – Tubular Inside Micrometer, 2-6IN

    Insize

    $226.10
    Insize 3222-6 – Tubular Inside Micr
    3222-6
    SKU:
    3222-6
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.26 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3222-6
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640328695
    Package Weight:
    1.26 lb
    Package Length:
    7.68 in
    Package Width:
    4.61 in
    Package Height:
    1.69 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.00005(3+n+L/2)]', n=number of rods, L=maximum measuring length (inch).
    Feature 3:
    Travel of micrometer head .5'
    Feature 4:
    Supplied with setting standards.
    Feature 5:
    Carbide measuring faces.
    $226.10
  • Insize 3222-60 precision measuring tool

    Insize 3222-60 – Tubular Inside Micrometer, 2-60IN

    Insize

    $2,023.50
    Insize 3222-60 – Tubular Inside Mic
    3222-60
    SKU:
    3222-60
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    5.35 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3222-60
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640328732
    Package Weight:
    5.35 lb
    Package Length:
    15.04 in
    Package Width:
    10.24 in
    Package Height:
    1.57 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.00005(3+n+L/2)]', n=number of rods, L=maximum measuring length (inch).
    Feature 3:
    Travel of micrometer head .5'
    Feature 4:
    Supplied with setting standards.
    Feature 5:
    Carbide measuring faces.
    $2,023.50
  • Insize 3224-120 precision measuring tool

    Insize 3224-120 – Tubular Inside Micrometer, 40-120IN

    Insize

    $3,999.50
    Insize 3224-120 – Tubular Inside Mi
    3224-120
    SKU:
    3224-120
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    21.01 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3224-120
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640356810
    Package Weight:
    21.01 lb
    Package Length:
    44.09 in
    Package Width:
    8.27 in
    Package Height:
    2.76 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.00005(7+n+L/2)]', n=number of rods,L=maximum measuring length (inch).
    Feature 3:
    Carbide measuring faces.
    $3,999.50
  • Insize 3224-160 precision measuring tool

    Insize 3224-160 – Tubular Inside Micrometer, 40-160IN

    Insize

    $6,106.06
    Insize 3224-160 – Tubular Inside Mi
    3224-160
    SKU:
    3224-160
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    28.86 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3224-160
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640356827
    Package Weight:
    28.86 lb
    Package Length:
    44.88 in
    Package Width:
    12.99 in
    Package Height:
    2.76 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.00005(7+n+L/2)]', n=number of rods,L=maximum measuring length (inch).
    Feature 3:
    Carbide measuring faces.
    $6,106.06
  • Insize 3224-200 precision measuring tool

    Insize 3224-200 – Tubular Inside Micrometer, 40-200IN

    Insize

    $8,053.65
    Insize 3224-200 – Tubular Inside Mi
    3224-200
    SKU:
    3224-200
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    16.42 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    3224-200
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640356834
    Package Weight:
    16.42 lb
    Package Length:
    44.09 in
    Package Width:
    8.27 in
    Package Height:
    2.76 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Accuracy: [.00005(7+n+L/2)]', n=number of rods,L=maximum measuring length (inch).
    Feature 3:
    Carbide measuring faces.
    $8,053.65