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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 4002-A30 precision measuring tool

    Insize 4002-A30 – Angle Gage Block, 30°

    Insize

    $527.25
    Insize 4002-A30 – Angle Gage Block,
    4002-A30
    SKU:
    4002-A30
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.79 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-A30
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354212
    Package Weight:
    1.79 lb
    Package Length:
    6.1 in
    Package Width:
    4.33 in
    Package Height:
    2.17 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $527.25
  • Insize 4002-A41 precision measuring tool

    Insize 4002-A41 – Angle Gage Block, 41°

    Insize

    $527.25
    Insize 4002-A41 – Angle Gage Block,
    4002-A41
    SKU:
    4002-A41
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.21 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-A41
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354229
    Package Weight:
    2.21 lb
    Package Length:
    7.68 in
    Package Width:
    6.3 in
    Package Height:
    2.56 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $527.25
  • Insize 4002-A45 precision measuring tool

    Insize 4002-A45 – Angle Gage Block, 45°

    Insize

    $527.25
    Insize 4002-A45 – Angle Gage Block,
    4002-A45
    SKU:
    4002-A45
    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:
    4002-A45
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354236
    Package Weight:
    2.31 lb
    Package Length:
    7.48 in
    Package Width:
    6.3 in
    Package Height:
    2.36 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $527.25
  • Insize 4002-A5 precision measuring tool

    Insize 4002-A5 – Angle Gage Block, 5°

    Insize

    $515.85
    Insize 4002-A5 – Angle Gage Block,
    4002-A5
    SKU:
    4002-A5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.65 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-A5
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354175
    Package Weight:
    0.65 lb
    Package Length:
    5.91 in
    Package Width:
    3.94 in
    Package Height:
    1.57 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-A9 precision measuring tool

    Insize 4002-A9 – Angle Gage Block, 9°

    Insize

    $515.85
    Insize 4002-A9 – Angle Gage Block,
    4002-A9
    SKU:
    4002-A9
    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:
    4002-A9
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354182
    Package Weight:
    0.73 lb
    Package Length:
    6.1 in
    Package Width:
    4.72 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-B1 precision measuring tool

    Insize 4002-B1 – Angle Gage Block, 1'

    Insize

    $515.85
    Insize 4002-B1 – Angle Gage Block,
    4002-B1
    SKU:
    4002-B1
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.61 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-B1
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354243
    Package Weight:
    0.61 lb
    Package Length:
    6.1 in
    Package Width:
    4.72 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-B20 precision measuring tool

    Insize 4002-B20 – Angle Gage Block, 20'

    Insize

    $515.85
    Insize 4002-B20 – Angle Gage Block,
    4002-B20
    SKU:
    4002-B20
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.61 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-B20
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354281
    Package Weight:
    0.61 lb
    Package Length:
    6.1 in
    Package Width:
    4.72 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-B27 precision measuring tool

    Insize 4002-B27 – Angle Gage Block, 27'

    Insize

    $515.85
    Insize 4002-B27 – Angle Gage Block,
    4002-B27
    SKU:
    4002-B27
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.59 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-B27
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354298
    Package Weight:
    0.59 lb
    Package Length:
    6.1 in
    Package Width:
    4.72 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-B3 precision measuring tool

    Insize 4002-B3 – Angle Gage Block, 3'

    Insize

    $515.85
    Insize 4002-B3 – Angle Gage Block,
    4002-B3
    SKU:
    4002-B3
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.58 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-B3
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354250
    Package Weight:
    0.58 lb
    Package Length:
    6.1 in
    Package Width:
    4.72 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-B30 precision measuring tool

    Insize 4002-B30 – Angle Gage Block, 30'

    Insize

    $515.85
    Insize 4002-B30 – Angle Gage Block,
    4002-B30
    SKU:
    4002-B30
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.58 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-B30
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354304
    Package Weight:
    0.58 lb
    Package Length:
    6.1 in
    Package Width:
    4.72 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-B5 precision measuring tool

    Insize 4002-B5 – Angle Gage Block, 5'

    Insize

    $515.85
    Insize 4002-B5 – Angle Gage Block,
    4002-B5
    SKU:
    4002-B5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.58 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-B5
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354267
    Package Weight:
    0.58 lb
    Package Length:
    6.1 in
    Package Width:
    4.72 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-B9 precision measuring tool

    Insize 4002-B9 – Angle Gage Block, 9'

    Insize

    $515.85
    Insize 4002-B9 – Angle Gage Block,
    4002-B9
    SKU:
    4002-B9
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.61 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-B9
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354274
    Package Weight:
    0.61 lb
    Package Length:
    6.1 in
    Package Width:
    4.72 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-C12 precision measuring tool

    Insize 4002-C12 – Angle Gage Block, 12 Arc-Seconds

    Insize

    $515.85
    Insize 4002-C12 – Angle Gage Block,
    4002-C12
    SKU:
    4002-C12
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.60 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-C12
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354328
    Package Weight:
    0.6 lb
    Package Length:
    6.1 in
    Package Width:
    4.72 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-C18 precision measuring tool

    Insize 4002-C18 – Angle Gage Block, 18 Arc-Seconds

    Insize

    $515.85
    Insize 4002-C18 – Angle Gage Block,
    4002-C18
    SKU:
    4002-C18
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.59 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-C18
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354335
    Package Weight:
    0.59 lb
    Package Length:
    6.1 in
    Package Width:
    4.72 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-C30 precision measuring tool

    Insize 4002-C30 – Angle Gage Block, 30 Arc-Seconds

    Insize

    $515.85
    Insize 4002-C30 – Angle Gage Block,
    4002-C30
    SKU:
    4002-C30
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.61 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-C30
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354342
    Package Weight:
    0.61 lb
    Package Length:
    6.1 in
    Package Width:
    4.72 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-C6 precision measuring tool

    Insize 4002-C6 – Angle Gage Block, 6 Arc-Seconds

    Insize

    $515.85
    Insize 4002-C6 – Angle Gage Block,
    4002-C6
    SKU:
    4002-C6
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.61 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-C6
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354311
    Package Weight:
    0.61 lb
    Package Length:
    6.1 in
    Package Width:
    4.72 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $515.85
  • Insize 4002-D precision measuring tool

    Insize 4002-D – Angle Gage Block, 90° Square, 90°/90°/90°/90°

    Insize

    $527.25
    Insize 4002-D – Angle Gage Block, 9
    4002-D
    SKU:
    4002-D
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.81 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4002-D
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640354359
    Package Weight:
    2.81 lb
    Package Length:
    7.48 in
    Package Width:
    6.3 in
    Package Height:
    2.76 in
    Feature 1:
    Accuracy: ±2'.
    Feature 2:
    To inspect protractor, taper gage, index plate, index head and goniometer, can also be used to set angle.
    Feature 3:
    Made of special alloy steel, hardness HRC64, high stability, wear resistance and easy combination.
    Feature 4:
    Can be combined to any angle with interval 6 seconds after combination (6', 12', 18', ... , 360°).
    $527.25
  • Insize 4003-10 precision measuring tool

    Insize 4003-10 – Angle Plate Set, 10 Pcs

    Insize

    $334.40
    Insize 4003-10 – Angle Plate Set, 1
    4003-10
    SKU:
    4003-10
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.77 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4003-10
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640355110
    Package Weight:
    2.77 lb
    Package Length:
    13.31 in
    Package Width:
    7.91 in
    Package Height:
    1.73 in
    Feature 1:
    For angle set-up in tooling, production and inspection.
    Feature 2:
    Hardness HRC55.
    Feature 3:
    10 Pieces in Set
    Feature 4:
    Angle Degrees: 1,2,3,4,5,10,15,20,25,30
    Feature 5:
    Made of tool steel
    $334.40
  • Insize 4003-12 precision measuring tool

    Insize 4003-12 – Angle Plate Set, 12 Pcs

    Insize

    $392.77
    Insize 4003-12 – Angle Plate Set, 1
    4003-12
    SKU:
    4003-12
    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:
    4003-12
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640355127
    Package Weight:
    2.64 lb
    Package Length:
    12.09 in
    Package Width:
    6.97 in
    Package Height:
    1.73 in
    Feature 1:
    For angle set-up in tooling, production and inspection.
    Feature 2:
    Hardness HRC55.
    Feature 3:
    12 Pieces in Set
    Feature 4:
    Angle Degrees: 1/4', 1/2', 1,2,3,4,5,10,15,20,25,30
    Feature 5:
    Made of tool steel
    $392.77
  • Insize 4004-9 – Universal Angle Plate Set, 9 Pcs

    Insize 4004-9 – Universal Angle Plate Set, 9 Pcs

    Insize

    $532.35
    Insize 4004-9 – Universal Angle Pla
    4004-9
    SKU:
    4004-9
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    4.88 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4004-9
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640355134
    Package Weight:
    4.88 lb
    Package Length:
    13.31 in
    Package Width:
    7.91 in
    Package Height:
    1.73 in
    Feature 1:
    For angle set-up in tooling, production and inspection.
    Feature 2:
    Hardness HRC55.
    Feature 3:
    9 Pieces in set.
    Feature 4:
    Angle Degrees: 1/2', 1,2,3,4,5,10,15,30
    Feature 5:
    Made of tool steel
    $532.35