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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 6313-5H32 precision measuring tool

    Insize 6313-5H32 – Setting Ring, 5/32IN DIA

    Insize

    $167.20
    Insize 6313-5H32 – Setting Ring, 5/
    6313-5H32
    SKU:
    6313-5H32
    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:
    6313-5H32
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357381
    Package Weight:
    0.06 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'.
    $167.20
  • Insize 6313-5H8 precision measuring tool

    Insize 6313-5H8 – Setting Ring, 5/8IN DIA

    Insize

    $182.40
    Insize 6313-5H8 – Setting Ring, 5/8
    6313-5H8
    SKU:
    6313-5H8
    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:
    6313-5H8
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357510
    Package Weight:
    0.32 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'.
    $182.40
  • Insize 6313-6 precision measuring tool

    Insize 6313-6 – Setting Ring, 6.0IN DIA

    Insize

    $1,565.38
    Insize 6313-6 – Setting Ring, 6.0IN
    6313-6
    SKU:
    6313-6
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    14.09 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-6
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640360107
    Package Weight:
    14.09 lb
    Package Length:
    11.22 in
    Package Width:
    11.22 in
    Package Height:
    2.56 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'.
    Feature 4:
    setting ring when supplied may be .20008'.
    $1,565.38
  • Insize 6313-7 precision measuring tool

    Insize 6313-7 – Setting Ring, 7.0IN DIA.

    Insize

    $1,953.47
    Insize 6313-7 – Setting Ring, 7.0IN
    6313-7
    SKU:
    6313-7
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    15.29 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-7
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640330544
    Package Weight:
    15.29 lb
    Package Length:
    11.02 in
    Package Width:
    11.02 in
    Package Height:
    2.76 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'.
    $1,953.47
  • Insize 6313-7H16 precision measuring tool

    Insize 6313-7H16 – Setting Ring, 7/16IN DIA

    Insize

    $182.40
    Insize 6313-7H16 – Setting Ring, 7/
    6313-7H16
    SKU:
    6313-7H16
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.21 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-7H16
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357466
    Package Weight:
    0.21 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'.
    $182.40
  • Insize 6313-7H32 precision measuring tool

    Insize 6313-7H32 – Setting Ring, 7/32 DIA

    Insize

    $166.25
    Insize 6313-7H32 – Setting Ring, 7/
    6313-7H32
    SKU:
    6313-7H32
    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:
    6313-7H32
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357404
    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'.
    $166.25
  • Insize 6313-7H8 precision measuring tool

    Insize 6313-7H8 – Setting Ring, 7/8IN DIA

    Insize

    $195.70
    Insize 6313-7H8 – Setting Ring, 7/8
    6313-7H8
    SKU:
    6313-7H8
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.50 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-7H8
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357596
    Package Weight:
    0.5 lb
    Package Length:
    3.15 in
    Package Width:
    2.95 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'.
    $195.70
  • Insize 6313-8 precision measuring tool

    Insize 6313-8 – Setting Ring, 8.0IN DIA.

    Insize

    $2,060.55
    Insize 6313-8 – Setting Ring, 8.0IN
    6313-8
    SKU:
    6313-8
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    22.25 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-8
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640330551
    Package Weight:
    22.25 lb
    Package Length:
    13.39 in
    Package Width:
    13.39 in
    Package Height:
    2.56 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'.
    $2,060.55
  • Insize 6313-9 precision measuring tool

    Insize 6313-9 – Setting Ring, 9.0IN DIA.

    Insize

    $2,829.10
    Insize 6313-9 – Setting Ring, 9.0IN
    6313-9
    SKU:
    6313-9
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    29.07 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-9
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640330568
    Package Weight:
    29.07 lb
    Package Length:
    15.75 in
    Package Width:
    15.75 in
    Package Height:
    3.35 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'.
    $2,829.10
  • Insize 6313-9H16 precision measuring tool

    Insize 6313-9H16 – Setting Ring, 9/16IN DIA

    Insize

    $182.40
    Insize 6313-9H16 – Setting Ring, 9/
    6313-9H16
    SKU:
    6313-9H16
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.19 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6313-9H16
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357497
    Package Weight:
    0.19 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'.
    $182.40
  • Insize 6313-9H32 precision measuring tool

    Insize 6313-9H32 – Setting Ring, 9/32IN DIA

    Insize

    $166.25
    Insize 6313-9H32 – Setting Ring, 9/
    6313-9H32
    SKU:
    6313-9H32
    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:
    6313-9H32
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640357411
    Package Weight:
    0.12 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'.
    $166.25
  • Insize 6315 precision measuring tool

    Insize 6315 – Micrometer Measuring Force Detector

    Insize

    $148.20
    Insize 6315 – Micrometer Measuring
    6315
    SKU:
    6315
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.64 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6315
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640351143
    Package Weight:
    0.64 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    For outside micrometers 0-1'/0-25mm,
    Feature 2:
    1-2'/25-50mm, 2-3'/50-75mm and 3-4'/75-100mm.
    Feature 3:
    Measures Micrometer Force 5-12N
    $148.20
  • Insize 6318 precision measuring tool

    Insize 6318 – Caliper/Micrometer Grinding Machine

    Insize

    $4,629.35
    Insize 6318 – Caliper/Micrometer Gr
    6318
    SKU:
    6318
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    90.40 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6318
    Product Family:
    Calipers
    Supplier Category Code:
    A
    EAN:
    6940561953862
    Package Weight:
    90.4 lb
    Package Length:
    20.9 in
    Package Width:
    19.7 in
    Package Height:
    14.6 in
    Feature 1:
    For lapping measuring surfaces of caliper lower jaws and outside micrometer
    Feature 2:
    Suitable for 0-300mm range calipers and 0-100mm range outside micrometers
    $4,629.35
  • Insize 6353-25 precision measuring tool

    Insize 6353-25 – Digital Micrometer Head, Stem With Clamp Nut, 0-1IN/0-25MM

    Insize

    $393.30
    Insize 6353-25 – Digital Micrometer
    6353-25
    SKU:
    6353-25
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.07 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6353-25
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640307737
    Package Weight:
    1.07 lb
    Package Length:
    7.68 in
    Package Width:
    4.61 in
    Package Height:
    1.69 in
    Feature 1:
    Resolution .00005'/0.001mm.
    Feature 2:
    IP65 dust/waterproof.
    Feature 3:
    Button function: on/off, set, inch/mm, ABS/INC
    Feature 4:
    Data output.
    Feature 5:
    LR44 battery, automatic power off.
    Feature 6:
    Ratchet stop.
    Feature 7:
    Optional accessory: data output cable
    $393.30
  • Insize 6353-25W precision measuring tool

    Insize 6353-25W – Digital Micrometer Head, Plain Stem, 0-1IN/0-25MM

    Insize

    $399.00
    Insize 6353-25W – Digital Micromete
    6353-25W
    SKU:
    6353-25W
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.06 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6353-25W
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640307744
    Package Weight:
    1.06 lb
    Package Length:
    7.68 in
    Package Width:
    4.61 in
    Package Height:
    1.69 in
    Feature 1:
    Resolution .00005'/0.001mm.
    Feature 2:
    IP65 dust/waterproof.
    Feature 3:
    Button function: on/off, set, inch/mm, ABS/INC
    Feature 4:
    Data output.
    Feature 5:
    LR44 battery, automatic power off.
    Feature 6:
    Ratchet stop.
    Feature 7:
    Optional accessory: data output cable
    $399.00
  • Insize 6354-25W precision measuring tool

    Insize 6354-25W – Digital Micrometer Head, Plain Stem, 0-1IN/0-25MM

    Insize

    $407.55
    Insize 6354-25W – Digital Micromete
    6354-25W
    SKU:
    6354-25W
    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:
    6354-25W
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640307782
    Package Weight:
    1.09 lb
    Package Length:
    7.68 in
    Package Width:
    4.61 in
    Package Height:
    1.69 in
    Feature 1:
    Resolution .00005'/0.001mm.
    Feature 2:
    IP65 dust/waterproof.
    Feature 3:
    Button function: on/off, set, inch/mm, ABS/INC
    Feature 4:
    Data output.
    Feature 5:
    LR44 battery, automatic power off.
    Feature 6:
    Ratchet stop.
    Feature 7:
    Optional accessory: data output cable
    $407.55
  • Insize 6377-1 precision measuring tool

    Insize 6377-1 – Non-Rotating Spindle Micrometer Head, 0-1IN

    Insize

    $90.92
    Insize 6377-1 – Non-Rotating Spindl
    6377-1
    SKU:
    6377-1
    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:
    6377-1
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640328534
    Package Weight:
    0.28 lb
    Package Length:
    4.92 in
    Package Width:
    0.98 in
    Package Height:
    0.98 in
    Feature 1:
    Graduation .001'
    Feature 2:
    Ratchet stop.
    Feature 3:
    Non rotating spindle.
    Feature 4:
    0-1' Range, with .001' Graduation
    Feature 5:
    Accuracy .00012'
    Feature 6:
    Flat Carbide Tip
    $90.92
  • Insize 6377-25W precision measuring tool

    Insize 6377-25W – Non-Rotating Spindle Micrometer Head, 0-25MM

    Insize

    $113.05
    Insize 6377-25W – Non-Rotating Spin
    6377-25W
    SKU:
    6377-25W
    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:
    6377-25W
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640308086
    Package Weight:
    0.28 lb
    Package Length:
    4.53 in
    Package Width:
    0.79 in
    Package Height:
    0.79 in
    Feature 1:
    Graduation 0.01mm
    Feature 2:
    Meet DIN863-2
    Feature 3:
    Ratchet stop
    Feature 4:
    Non-rotating spindle
    $113.05
  • Insize 6381-1W precision measuring tool

    Insize 6381-1W – Micrometer Head, 0-1IN

    Insize

    $51.30
    Insize 6381-1W – Micrometer Head, 0
    6381-1W
    SKU:
    6381-1W
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.25 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6381-1W
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640356261
    Package Weight:
    0.25 lb
    Package Length:
    4.65 in
    Package Width:
    0.91 in
    Package Height:
    0.91 in
    Feature 1:
    Graduatiion .001'
    Feature 2:
    Ratchet stop
    Feature 3:
    Flat Carbide Tip Spindle
    Feature 4:
    0-1' Range, with .001' Graduation
    Feature 5:
    Accuracy .00012'
    $51.30
  • Insize 6381-25W precision measuring tool

    Insize 6381-25W – Micrometer Head, 0-25MM

    Insize

    $52.63
    Insize 6381-25W – Micrometer Head,
    6381-25W
    SKU:
    6381-25W
    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:
    6381-25W
    Product Family:
    Micrometers
    Supplier Category Code:
    A
    EAN:
    6928640308031
    Package Weight:
    0.23 lb
    Package Length:
    4.41 in
    Package Width:
    0.87 in
    Package Height:
    0.87 in
    Feature 1:
    Graduation 0.01mm
    Feature 2:
    Ratchet stop
    Feature 3:
    Flat Carbide Tip Spindle
    Feature 4:
    0-25mm Range, with 0.01mm Graduation
    Feature 5:
    Accuracy 3um
    $52.63