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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 6311-35 precision measuring tool

    Insize 6311-35 – Micrometer Setting Standard, 35IN

    Insize

    $174.80
    Insize 6311-35 – Micrometer Setting
    6311-35
    SKU:
    6311-35
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.98 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6311-35
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640351112
    Package Weight:
    2.98 lb
    Package Length:
    35.83 in
    Package Width:
    1.97 in
    Package Height:
    1.77 in
    Feature 1:
    Length 35'
    Feature 2:
    Type B
    Feature 3:
    Suitable for mechanical micrometers.
    $174.80
  • Insize 6311-37 precision measuring tool

    Insize 6311-37 – Micrometer Setting Standard, 37IN

    Insize

    $200.45
    Insize 6311-37 – Micrometer Setting
    6311-37
    SKU:
    6311-37
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.36 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6311-37
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640351129
    Package Weight:
    3.36 lb
    Package Length:
    39.76 in
    Package Width:
    1.97 in
    Package Height:
    1.57 in
    Feature 1:
    Length 37'
    Feature 2:
    Type B
    Feature 3:
    Suitable for mechanical micrometers.
    $200.45
  • Insize 6311-39 precision measuring tool

    Insize 6311-39 – Micrometer Setting Standard, 39IN

    Insize

    $204.25
    Insize 6311-39 – Micrometer Setting
    6311-39
    SKU:
    6311-39
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.33 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6311-39
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640351136
    Package Weight:
    3.33 lb
    Package Length:
    45.28 in
    Package Width:
    2.44 in
    Package Height:
    1.77 in
    Feature 1:
    Length 39'
    Feature 2:
    Type B
    Feature 3:
    Suitable for mechanical micrometers.
    $204.25
  • Insize 6311-4 precision measuring tool

    Insize 6311-4 – Micrometer Setting Standard, 4IN

    Insize

    $16.58
    Insize 6311-4 – Micrometer Setting
    6311-4
    SKU:
    6311-4
    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:
    6311-4
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640350597
    Package Weight:
    0.13 lb
    Package Length:
    4.61 in
    Package Width:
    0.79 in
    Package Height:
    0.79 in
    Feature 1:
    Length 4'
    Feature 2:
    Type A
    Feature 3:
    Suitable for mechanical micrometers.
    $16.58
  • Insize 6311-5 precision measuring tool

    Insize 6311-5 – Micrometer Setting Standard, 5IN

    Insize

    $20.30
    Insize 6311-5 – Micrometer Setting
    6311-5
    SKU:
    6311-5
    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:
    6311-5
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640350603
    Package Weight:
    0.15 lb
    Package Length:
    5.12 in
    Package Width:
    0.79 in
    Package Height:
    0.79 in
    Feature 1:
    Length 5'
    Feature 2:
    Type A
    Feature 3:
    Suitable for mechanical micrometers.
    $20.30
  • Insize 6311-6 precision measuring tool

    Insize 6311-6 – Micrometer Setting Standard, 6IN

    Insize

    $21.32
    Insize 6311-6 – Micrometer Setting
    6311-6
    SKU:
    6311-6
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.20 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6311-6
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640350610
    Package Weight:
    0.2 lb
    Package Length:
    7.28 in
    Package Width:
    0.87 in
    Package Height:
    0.87 in
    Feature 1:
    Length 6'
    Feature 2:
    Type A
    Feature 3:
    Suitable for mechanical micrometers.
    $21.32
  • Insize 6311-7 precision measuring tool

    Insize 6311-7 – Micrometer Setting Standard, 7IN

    Insize

    $24.65
    Insize 6311-7 – Micrometer Setting
    6311-7
    SKU:
    6311-7
    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:
    6311-7
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640350627
    Package Weight:
    0.23 lb
    Package Length:
    7.28 in
    Package Width:
    0.79 in
    Package Height:
    0.79 in
    Feature 1:
    Length 7'
    Feature 2:
    Type A
    Feature 3:
    Suitable for mechanical micrometers.
    $24.65
  • Insize 6311-8 precision measuring tool

    Insize 6311-8 – Micrometer Setting Standard, 8IN

    Insize

    $28.14
    Insize 6311-8 – Micrometer Setting
    6311-8
    SKU:
    6311-8
    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:
    6311-8
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640350634
    Package Weight:
    0.26 lb
    Package Length:
    8.15 in
    Package Width:
    0.79 in
    Package Height:
    0.79 in
    Feature 1:
    Length 8'
    Feature 2:
    Type A
    Feature 3:
    Suitable for mechanical micrometers.
    $28.14
  • Insize 6311-9 precision measuring tool

    Insize 6311-9 – Micrometer Setting Standard, 9IN

    Insize

    $31.23
    Insize 6311-9 – Micrometer Setting
    6311-9
    SKU:
    6311-9
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.28 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6311-9
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640350641
    Package Weight:
    0.28 lb
    Package Length:
    10.43 in
    Package Width:
    0.79 in
    Package Height:
    0.79 in
    Feature 1:
    Length 9'
    Feature 2:
    Type A
    Feature 3:
    Suitable for mechanical micrometers.
    $31.23
  • Insize 6313-0D1 precision measuring tool

    Insize 6313-0D1 – Setting Ring, .1IN DIA

    Insize

    $312.55
    Insize 6313-0D1 – Setting Ring, .1I
    6313-0D1
    SKU:
    6313-0D1
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.06 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-0D1
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357633
    Package Weight:
    0.06 lb
    Package Length:
    2.24 in
    Package Width:
    2.13 in
    Package Height:
    0.91 in
    Feature 1:
    For zero setting of inside micrometers, three points internal micrometers and bore gages.
    Feature 2:
    Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
    Feature 3:
    For example, the ordered size is .2'', the size marked on the setting ring when supplied may be .20008'.
    $312.55
  • Insize 6313-0D16 precision measuring tool

    Insize 6313-0D16 – Setting Ring, .16IN DIA

    Insize

    $87.02
    Insize 6313-0D16 – Setting Ring, .1
    6313-0D16
    SKU:
    6313-0D16
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.06 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-0D16
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357640
    Package Weight:
    0.06 lb
    Package Length:
    2.24 in
    Package Width:
    2.13 in
    Package Height:
    0.91 in
    Feature 1:
    For zero setting of inside micrometers, three points internal micrometers and bore gages.
    Feature 2:
    Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
    Feature 3:
    For example, the ordered size is .2'', the size marked on the setting ring when supplied may be .20008'.
    $87.02
  • Insize 6313-0D24 precision measuring tool

    Insize 6313-0D24 – Setting Ring, .24IN DIA

    Insize

    $86.17
    Insize 6313-0D24 – Setting Ring, .2
    6313-0D24
    SKU:
    6313-0D24
    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:
    6313-0D24
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357657
    Package Weight:
    0.13 lb
    Package Length:
    2.24 in
    Package Width:
    2.13 in
    Package Height:
    0.87 in
    Feature 1:
    For zero setting of inside micrometers, three points internal micrometers and bore gages.
    Feature 2:
    Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
    Feature 3:
    For example, the ordered size is .2'', the size marked on the setting ring when supplied may be .20008'.
    $86.17
  • Insize 6313-0D275 precision measuring tool

    Insize 6313-0D275 – Setting Ring, .275IN DIA

    Insize

    $86.17
    Insize 6313-0D275 – Setting Ring, .
    6313-0D275
    SKU:
    6313-0D275
    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:
    6313-0D275
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357664
    Package Weight:
    0.13 lb
    Package Length:
    2.24 in
    Package Width:
    2.13 in
    Package Height:
    0.91 in
    Feature 1:
    For zero setting of inside micrometers, three points internal micrometers and bore gages.
    Feature 2:
    Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
    Feature 3:
    For example, the ordered size is .2'', the size marked on the setting ring when supplied may be .20008'.
    $86.17
  • Insize 6313-0D35 precision measuring tool

    Insize 6313-0D35 – Setting Ring, .35IN DIA

    Insize

    $86.17
    Insize 6313-0D35 – Setting Ring, .3
    6313-0D35
    SKU:
    6313-0D35
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.12 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-0D35
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357671
    Package Weight:
    0.12 lb
    Package Length:
    2.24 in
    Package Width:
    2.09 in
    Package Height:
    0.87 in
    Feature 1:
    For zero setting of inside micrometers, three points internal micrometers and bore gages.
    Feature 2:
    Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
    Feature 3:
    For example, the ordered size is .2'', the size marked on the setting ring when supplied may be .20008'.
    $86.17
  • Insize 6313-0D425 precision measuring tool

    Insize 6313-0D425 – Setting Ring, .425IN DIA

    Insize

    $93.29
    Insize 6313-0D425 – Setting Ring, .
    6313-0D425
    SKU:
    6313-0D425
    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:
    6313-0D425
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357688
    Package Weight:
    0.13 lb
    Package Length:
    2.24 in
    Package Width:
    2.13 in
    Package Height:
    0.87 in
    Feature 1:
    For zero setting of inside micrometers, three points internal micrometers and bore gages.
    Feature 2:
    Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
    Feature 3:
    For example, the ordered size is .2'', the size marked on the setting ring when supplied may be .20008'.
    $93.29
  • Insize 6313-0D6 precision measuring tool

    Insize 6313-0D6 – Setting Ring, .6IN DIA

    Insize

    $93.39
    Insize 6313-0D6 – Setting Ring, .6I
    6313-0D6
    SKU:
    6313-0D6
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.20 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-0D6
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357695
    Package Weight:
    0.2 lb
    Package Length:
    2.24 in
    Package Width:
    2.13 in
    Package Height:
    0.87 in
    Feature 1:
    For zero setting of inside micrometers, three points internal micrometers and bore gages.
    Feature 2:
    Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
    Feature 3:
    For example, the ordered size is .2'', the size marked on the setting ring when supplied may be .20008'.
    $93.39
  • Insize 6313-0D65 precision measuring tool

    Insize 6313-0D65 – Setting Ring, .65IN DIA

    Insize

    $93.39
    Insize 6313-0D65 – Setting Ring, .6
    6313-0D65
    SKU:
    6313-0D65
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.32 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-0D65
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357701
    Package Weight:
    0.32 lb
    Package Length:
    2.24 in
    Package Width:
    2.13 in
    Package Height:
    0.87 in
    Feature 1:
    For zero setting of inside micrometers, three points internal micrometers and bore gages.
    Feature 2:
    Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
    Feature 3:
    For example, the ordered size is .2'', the size marked on the setting ring when supplied may be .20008'.
    $93.39
  • Insize 6313-0D7 precision measuring tool

    Insize 6313-0D7 – Setting Ring, .7IN DIA

    Insize

    $93.39
    Insize 6313-0D7 – Setting Ring, .7I
    6313-0D7
    SKU:
    6313-0D7
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.30 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-0D7
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357718
    Package Weight:
    0.3 lb
    Package Length:
    2.24 in
    Package Width:
    2.13 in
    Package Height:
    0.87 in
    Feature 1:
    For zero setting of inside micrometers, three points internal micrometers and bore gages.
    Feature 2:
    Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
    Feature 3:
    For example, the ordered size is .2'', the size marked on the setting ring when supplied may be .20008'.
    $93.39
  • Insize 6313-0D8 precision measuring tool

    Insize 6313-0D8 – Setting Ring, .8IN DIA

    Insize

    $100.70
    Insize 6313-0D8 – Setting Ring, .8I
    6313-0D8
    SKU:
    6313-0D8
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.31 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-0D8
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357725
    Package Weight:
    0.31 lb
    Package Length:
    3.15 in
    Package Width:
    2.95 in
    Package Height:
    1.22 in
    Feature 1:
    For zero setting of inside micrometers, three points internal micrometers and bore gages.
    Feature 2:
    Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
    Feature 3:
    For example, the ordered size is .2'', the size marked on the setting ring when supplied may be .20008'.
    $100.70
  • Insize 6313-1 precision measuring tool

    Insize 6313-1 – Setting Ring, 1.0IN DIA.

    Insize

    $114.95
    Insize 6313-1 – Setting Ring, 1.0IN
    6313-1
    SKU:
    6313-1
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.57 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-1
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640330391
    Package Weight:
    0.57 lb
    Package Length:
    3.15 in
    Package Width:
    3.15 in
    Package Height:
    1.18 in
    Feature 1:
    For zero setting of inside micrometers, three points internal micrometers and bore gages.
    Feature 2:
    Deviation is the difference between the ordered size and the size marked on the setting ring when supplied.
    Feature 3:
    For example, the ordered size is .2'', the size marked on the setting ring when supplied may be .20008'.
    $114.95