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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 4906-150 precision measuring tool

    Insize 4906-150 – Frame Level, 6×6IN

    Insize

    $1,682.56
    Insize 4906-150 – Frame Level, 6×6I
    4906-150
    SKU:
    4906-150
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    5.56 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4906-150
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640324963
    Package Weight:
    5.56 lb
    Package Length:
    10.63 in
    Package Width:
    7.87 in
    Package Height:
    2.76 in
    Feature 1:
    Sensitivity .0024in/ft (=0.001°)
    Feature 2:
    No need to set zero before use.
    Feature 3:
    Three V-grooves for shafts (shafts diameter .76~4.56').
    Feature 4:
    With longitudinal vial.
    $1,682.56
  • Insize 4906-200 precision measuring tool

    Insize 4906-200 – Frame Level, 8×8IN

    Insize

    $1,994.12
    Insize 4906-200 – Frame Level, 8×8I
    4906-200
    SKU:
    4906-200
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    8.49 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4906-200
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640324970
    Package Weight:
    8.49 lb
    Package Length:
    13.78 in
    Package Width:
    10.63 in
    Package Height:
    3.15 in
    Feature 1:
    Sensitivity .0024in/ft (=0.001°)
    Feature 2:
    No need to set zero before use.
    Feature 3:
    Three V-grooves for shafts (shafts diameter .76~4.56').
    Feature 4:
    With longitudinal vial.
    $1,994.12
  • Insize 4906-300 precision measuring tool

    Insize 4906-300 – Frame Level, 12×12IN

    Insize

    $2,902.20
    Insize 4906-300 – Frame Level, 12×1
    4906-300
    SKU:
    4906-300
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    17.51 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4906-300
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640360763
    Package Weight:
    17.51 lb
    Package Length:
    19.69 in
    Package Width:
    16.14 in
    Package Height:
    5.12 in
    Feature 1:
    Sensitivity .0024in/ft (=0.001°)
    Feature 2:
    No need to set zero before use.
    Feature 3:
    Three V-grooves for shafts (shafts diameter .76~4.56').
    Feature 4:
    With longitudinal vial.
    $2,902.20
  • Insize 4906-B150 precision measuring tool

    Insize 4906-B150 – Block Level, 6x6IN

    Insize

    $1,138.39
    Insize 4906-B150 – Block Level, 6x6
    4906-B150
    SKU:
    4906-B150
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    5.65 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4906-B150
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640378836
    Package Weight:
    5.65 lb
    Package Length:
    10.04 in
    Package Width:
    8.46 in
    Package Height:
    2.95 in
    Feature 1:
    Sensitivity .0012in/ft (=0.0057°)
    Feature 2:
    No need to set zero before use
    Feature 3:
    Three V-grooves for shafts (shafts diameter .76~4.56')
    Feature 4:
    With longitudinal vial
    $1,138.39
  • Insize 4906-B200 precision measuring tool

    Insize 4906-B200 – Block Level, 8x8IN

    Insize

    $1,410.54
    Insize 4906-B200 – Block Level, 8x8
    4906-B200
    SKU:
    4906-B200
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    8.49 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4906-B200
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640378843
    Package Weight:
    8.49 lb
    Package Length:
    13.78 in
    Package Width:
    10.63 in
    Package Height:
    3.15 in
    Feature 1:
    Sensitivity .0012in/ft (=0.0057°)
    Feature 2:
    No need to set zero before use
    Feature 3:
    Three V-grooves for shafts (shafts diameter .76~4.56')
    Feature 4:
    With longitudinal vial
    $1,410.54
  • Insize 4906-B300 precision measuring tool

    Insize 4906-B300 – Block Level, 12x12IN

    Insize

    $2,386.67
    Insize 4906-B300 – Block Level, 12x
    4906-B300
    SKU:
    4906-B300
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    17.51 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4906-B300
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640378850
    Package Weight:
    17.51 lb
    Package Length:
    19.69 in
    Package Width:
    16.14 in
    Package Height:
    5.12 in
    Feature 1:
    Sensitivity .0012in/ft (=0.0057°)
    Feature 2:
    No need to set zero before use
    Feature 3:
    Three V-grooves for shafts (shafts diameter .76~4.56')
    Feature 4:
    With longitudinal vial
    $2,386.67
  • Insize 4907-90 precision measuring tool

    Insize 4907-90 – Short Level, 3.5IN

    Insize

    $656.84
    Insize 4907-90 – Short Level, 3.5IN
    4907-90
    SKU:
    4907-90
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.82 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4907-90
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640324987
    Package Weight:
    1.82 lb
    Package Length:
    5.51 in
    Package Width:
    3.94 in
    Package Height:
    2.76 in
    Feature 1:
    Sensitivity .0012in/ft (=0.0057°)
    Feature 2:
    No need to set zero before use.
    Feature 3:
    Suitable for small spaces like crankshaft.
    Feature 4:
    Longitudinal and transverse V-grooves on bottom for shafts (shafts diameter .76~4.56').
    Feature 5:
    With transverse vial.
    $656.84
  • Insize 4908-100 precision measuring tool

    Insize 4908-100 – Mini Level, 3.9IN

    Insize

    $426.57
    Insize 4908-100 – Mini Level, 3.9IN
    4908-100
    SKU:
    4908-100
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.81 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4908-100
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640324994
    Package Weight:
    0.81 lb
    Package Length:
    5.12 in
    Package Width:
    1.57 in
    Package Height:
    1.57 in
    Feature 1:
    Sensitivity .0012in/ft (=0.0057°)
    Feature 2:
    No need to set zero before use.
    Feature 3:
    With mounting holes (for M5 screw).
    $426.57
  • Insize 4909-60 precision measuring tool

    Insize 4909-60 – Disc Level

    Insize

    $635.92
    Insize 4909-60 – Disc Level
    4909-60
    SKU:
    4909-60
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.87 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4909-60
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640386701
    Package Weight:
    0.87 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Sensitivity .004 in/ft(=0.3mm/m)
    Feature 2:
    With transverse and longitudinal vials.
    Feature 3:
    No need to set zero before use.
    Feature 4:
    With three mounting holes
    $635.92
  • Insize 4909-80 precision measuring tool

    Insize 4909-80 – Disc Level

    Insize

    $1,906.65
    Insize 4909-80 – Disc Level
    4909-80
    SKU:
    4909-80
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.41 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4909-80
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640395093
    Package Weight:
    1.41 lb
    Package Length:
    7.87 in
    Package Width:
    4.72 in
    Package Height:
    1.97 in
    Feature 1:
    Sensitivity .008 in/ft(=0.6mm/m)
    Feature 2:
    With transverse and longitudinal vials.
    Feature 3:
    No need to set zero before use.
    Feature 4:
    With three mounting holes
    $1,906.65
  • Insize 4910-400 precision measuring tool

    Insize 4910-400 – Digital Level and Slope Meter, 0-360°(90 °×4)

    Insize

    $85.88
    Insize 4910-400 – Digital Level and
    4910-400
    SKU:
    4910-400
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4910-400
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6940561936438
    Package Weight:
    1.04 lb
    Package Length:
    16.93 in
    Package Width:
    4.02 in
    Package Height:
    2.44 in
    Feature 1:
    With transverse and longitudinal vials
    Feature 2:
    Used as level and slope meter to measure the angle of two separate surfaces
    Feature 3:
    Aluminum frame
    Feature 4:
    Magnetic bottom
    Feature 5:
    The sea level is permanently set inside the chip, zero setting is not needed when batteries are replaced
    Feature 6:
    Buttons: ON/OFF, absolute and incremental measurement, keep the reading, buzzer alarm(not for 4910-400), unit (mm/m, %, in/ft), conversion(not for 4910-400), backlight
    Feature 7:
    The display flips over when the bottom faces up
    Feature 8:
    Two AAA batteries. Automatic power off.
    $85.88
  • Insize 4910-600 precision measuring tool

    Insize 4910-600 – Digital Level and Slope Meter, 0-360°(90 °×4)

    Insize

    $186.20
    Insize 4910-600 – Digital Level and
    4910-600
    SKU:
    4910-600
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.60 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4910-600
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640325007
    Package Weight:
    1.6 lb
    Package Length:
    24.8 in
    Package Width:
    4.33 in
    Package Height:
    1.57 in
    Feature 1:
    With transverse and longitudinal vials.
    Feature 2:
    Used as level and slope meter to measure the angle of two separate surfaces
    Feature 3:
    Aluminum frame.
    Feature 4:
    Magnetic bottom.
    Feature 5:
    The sea level is permanently set inside the chip, zero setting is not needed when batteries are replaced.
    Feature 6:
    Buttons: ON/OFF, absolute and incremental measurement, keep the reading, buzzer alarm(not for 4910-400), unit (mm/m, %, in/ft), conversion(not for 4910-400), backlight
    Feature 7:
    The display flips over when the bottom faces up
    Feature 8:
    Two AAA batteries. Automatic power off.
    $186.20
  • Insize 4911-600 precision measuring tool

    Insize 4911-600 – Aluminum Alloy Level, 24IN

    Insize

    $69.73
    Insize 4911-600 – Aluminum Alloy Le
    4911-600
    SKU:
    4911-600
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.81 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4911-600
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640325021
    Package Weight:
    1.81 lb
    Package Length:
    24.21 in
    Package Width:
    3.15 in
    Package Height:
    1.57 in
    Feature 1:
    Accuracy .006in/ft
    Feature 2:
    Top and bottom working surfaces.
    Feature 3:
    Shock-proof and UV-proof vials.
    Feature 4:
    Die casting aluminum alloy frame.
    Feature 5:
    Zero position of horizontal vial can be set.
    Feature 6:
    One graduation of horizontal vial is 2% slope.
    Feature 7:
    Working temperature: 5°F ~ 131°F
    $69.73
  • Insize 4911-800 precision measuring tool

    Insize 4911-800 – Aluminum Alloy Level, 32IN

    Insize

    $77.52
    Insize 4911-800 – Aluminum Alloy Le
    4911-800
    SKU:
    4911-800
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4911-800
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640325038
    Package Weight:
    2.03 lb
    Package Length:
    31.5 in
    Package Width:
    2.76 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy .006in/ft
    Feature 2:
    Top and bottom working surfaces.
    Feature 3:
    Shock-proof and UV-proof vials.
    Feature 4:
    Die casting aluminum alloy frame.
    Feature 5:
    Zero position of horizontal vial can be set.
    Feature 6:
    One graduation of horizontal vial is 2% slope.
    Feature 7:
    Working temperature: 5°F ~ 131°F
    $77.52
  • Insize 4912-100 precision measuring tool

    Insize 4912-100 – Handy Level, 4IN

    Insize

    $16.72
    Insize 4912-100 – Handy Level, 4IN<
    4912-100
    SKU:
    4912-100
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.23 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4912-100
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640381379
    Package Weight:
    0.23 lb
    Package Length:
    4.45 in
    Package Width:
    4.06 in
    Package Height:
    0.51 in
    Feature 1:
    Accuracy .006in/ft
    Feature 2:
    Shockproof vials.
    Feature 3:
    Magnetic base.
    Feature 4:
    Shock absorbing rubber end caps.
    Feature 5:
    Working temperature: 5°F ~ 131°F
    $16.72
  • Insize 4913-250 precision measuring tool

    Insize 4913-250 – Cast Aluminum Level, 10IN

    Insize

    $30.12
    Insize 4913-250 – Cast Aluminum Lev
    4913-250
    SKU:
    4913-250
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.52 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4913-250
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640381386
    Package Weight:
    0.52 lb
    Package Length:
    9.76 in
    Package Width:
    1.77 in
    Package Height:
    0.98 in
    Feature 1:
    Accuracy .006in/ft
    Feature 2:
    Shockproof horizontal and vertical vials.
    Feature 3:
    Magnetic base.
    Feature 4:
    Working temperature: 5°F ~ 131°F.
    Feature 5:
    Cast aluminum body
    $30.12
  • Insize 4914-1000 precision measuring tool

    Insize 4914-1000 – Aluminum Level, 40IN

    Insize

    $60.04
    Insize 4914-1000 – Aluminum Level,
    4914-1000
    SKU:
    4914-1000
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.34 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4914-1000
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    A
    EAN:
    6928640381416
    Package Weight:
    1.34 lb
    Package Length:
    39.37 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    Feature 1:
    Accuracy .006in/ft
    Feature 2:
    Shockproof horizontal and vertical vials.
    Feature 3:
    Magnetic base.
    Feature 4:
    Shock absorbing rubber end caps.
    Feature 5:
    Working temperature: 5°F ~ 131°F
    $60.04
  • Insize 4914-1200 precision measuring tool

    Insize 4914-1200 – Aluminum Level

    Insize

    $66.41
    Insize 4914-1200 – Aluminum Level
    4914-1200
    SKU:
    4914-1200
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.61 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4914-1200
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    A
    EAN:
    6928640381423
    Package Weight:
    1.61 lb
    Package Length:
    47.24 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    Feature 1:
    Accuracy .006in/ft
    Feature 2:
    Shockproof horizontal and vertical vials.
    Feature 3:
    Magnetic base.
    Feature 4:
    Shock absorbing rubber end caps.
    Feature 5:
    Working temperature: 5°F ~ 131°F
    $66.41
  • Insize 4914-2000 precision measuring tool

    Insize 4914-2000 – Aluminum Level

    Insize

    $102.40
    Insize 4914-2000 – Aluminum Level
    4914-2000
    SKU:
    4914-2000
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.28 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4914-2000
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    A
    EAN:
    6940561942293
    Package Weight:
    2.28 lb
    Package Length:
    78.74 in
    Package Width:
    1.97 in
    Package Height:
    0.79 in
    Feature 1:
    Accuracy .006in/ft
    Feature 2:
    Shockproof horizontal and vertical vials.
    Feature 3:
    Magnetic base.
    Feature 4:
    Shock absorbing rubber end caps.
    Feature 5:
    Working temperature: 5°F ~ 131°F
    $102.40
  • Insize 4914-300 precision measuring tool

    Insize 4914-300 – Aluminum Level, 12IN

    Insize

    $32.21
    Insize 4914-300 – Aluminum Level, 1
    4914-300
    SKU:
    4914-300
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.51 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4914-300
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    A
    EAN:
    6940561905175
    Package Weight:
    0.51 lb
    Package Length:
    13.39 in
    Package Width:
    2.17 in
    Package Height:
    0.87 in
    Feature 1:
    Accuracy .006in/ft
    Feature 2:
    Shockproof horizontal and vertical vials.
    Feature 3:
    Magnetic base.
    Feature 4:
    Shock absorbing rubber end caps.
    Feature 5:
    Working temperature: 5°F ~ 131°F
    $32.21