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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 ISQ-DRM31 precision measuring tool

    Insize ISQ-DRM31 – Digital Refractometer, 0-50%(1.3330-1.4200RI)

    Insize

    $534.85
    Insize ISQ-DRM31 – Digital Refracto
    ISQ-DRM31
    SKU:
    ISQ-DRM31
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.44 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-DRM31
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640384707
    Package Weight:
    0.44 lb
    Package Length:
    5.91 in
    Package Width:
    3.94 in
    Package Height:
    2.36 in
    Feature 1:
    Resolution 0.1%(0.0001rRI)
    Feature 2:
    Accuracy ±0.2%(±0.0003RI)
    Feature 3:
    Quickly measure the concentration of coolant
    Feature 4:
    Two measurement modes: signal measurement and automatic average multiple measurement)
    Feature 5:
    Two units: brix and refractive index
    Feature 6:
    Automatic power off
    $534.85
  • Insize ISQ-RM30 precision measuring tool

    Insize ISQ-RM30 – Portable Refractometer, 0-32%

    Insize

    $140.60
    Insize ISQ-RM30 – Portable Refracto
    ISQ-RM30
    SKU:
    ISQ-RM30
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.15 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-RM30
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640379277
    Package Weight:
    1.15 lb
    Package Length:
    9.25 in
    Package Width:
    3.35 in
    Package Height:
    2.76 in
    Feature 1:
    Graduation: 0.2%
    Feature 2:
    Quickly measure the concentration of coolant.
    Feature 3:
    Refer to the refraction factor of coolant,
    Feature 4:
    for example: the refraction factor of grinding emulsion is 2.1, the reading value is 6%, so the actual concentration is (2.1×6%)=12.6%
    $140.60
  • Insize ISQ-TE100 precision measuring tool

    Insize ISQ-TE100 – External Thread Measuring Device, 0-3.937IN

    Insize

    $21,137.50
    Insize ISQ-TE100 – External Thread
    ISQ-TE100
    SKU:
    ISQ-TE100
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    28.66 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-TE100
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    B
    EAN:
    6928640371103
    Package Weight:
    28.66 lb
    Package Length:
    16.93 in
    Package Width:
    17.13 in
    Package Height:
    9.84 in
    Feature 1:
    Resolution .00001'. Accuracy .00008'
    Feature 2:
    Repeatability .00002'
    Feature 3:
    Quickly measure major, pitch and minor diameters of of external thread.
    Feature 4:
    Suitable for metric, inch, Whitworth, NPT and BSPT.
    $21,137.50
  • Insize ISQ-TE100-A precision measuring tool

    Insize ISQ-TE100-A – Measuring Pins, 21 Pairs

    Insize

    $5,289.60
    Insize ISQ-TE100-A – Measuring Pins
    ISQ-TE100-A
    SKU:
    ISQ-TE100-A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.32 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-TE100-A
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    B
    EAN:
    6928640371110
    Package Weight:
    1.32 lb
    Package Length:
    13.58 in
    Package Width:
    7.17 in
    Package Height:
    1.38 in
    Feature 1:
    To measure pitch diameter of external thread.
    Feature 2:
    Each size is supplied in pair.
    Feature 3:
    Hardness: 60±2HRC.
    Feature 4:
    Optional accessory for ISQ-TE100
    $5,289.60
  • Insize ISQ-TE100-B precision measuring tool

    Insize ISQ-TE100-B – Measuring Prisms, 4 Pairs

    Insize

    $5,718.05
    Insize ISQ-TE100-B – Measuring Pris
    ISQ-TE100-B
    SKU:
    ISQ-TE100-B
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.77 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-TE100-B
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    B
    EAN:
    6928640371127
    Package Weight:
    0.77 lb
    Package Length:
    6.1 in
    Package Width:
    3.62 in
    Package Height:
    1.57 in
    Feature 1:
    To measure minor diameter of external thread.
    Feature 2:
    Each size is supplied in pair.
    Feature 3:
    Optional accessory for ISQ-TE100
    $5,718.05
  • Insize ISQ-TE100-C precision measuring tool

    Insize ISQ-TE100-C – Female Center, 1 Pair

    Insize

    $979.45
    Insize ISQ-TE100-C – Female Center,
    ISQ-TE100-C
    SKU:
    ISQ-TE100-C
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.65 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-TE100-C
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6928640371134
    Package Weight:
    2.65 lb
    Package Length:
    8.66 in
    Package Width:
    5.51 in
    Package Height:
    3.15 in
    Feature 1:
    With small holes to support small workpieces without female centers.
    Feature 2:
    Supplied in pairs.
    Feature 3:
    Optional accessory for ISQ-TE100
    $979.45
  • Insize ISQ-TE100-D precision measuring tool

    Insize ISQ-TE100-D – Clamp, 3 Pcs

    Insize

    $1,152.35
    Insize ISQ-TE100-D – Clamp, 3 Pcs
    ISQ-TE100-D
    SKU:
    ISQ-TE100-D
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.75 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-TE100-D
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640371141
    Package Weight:
    3.75 lb
    Package Length:
    7.09 in
    Package Width:
    4.72 in
    Package Height:
    3.15 in
    Feature 1:
    To hold large workpieces with inner bore.
    Feature 2:
    Optional accessory for ISQ-TE100
    $1,152.35
  • Insize ISQ-TE100-E precision measuring tool

    Insize ISQ-TE100-E – Setting Disc, 22 Pcs

    Insize

    $6,510.35
    Insize ISQ-TE100-E – Setting Disc,
    ISQ-TE100-E
    SKU:
    ISQ-TE100-E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.97 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-TE100-E
    Product Family:
    Measuring Tool Sets
    Supplier Category Code:
    B
    EAN:
    6928640371158
    Package Weight:
    3.97 lb
    Package Length:
    7.87 in
    Package Width:
    20.28 in
    Package Height:
    7.87 in
    Feature 1:
    To set initial value.
    Feature 2:
    Optional accessory for ISQ-TE100
    $6,510.35
  • Insize ISQ-TE100-F precision measuring tool

    Insize ISQ-TE100-F – 60° Find Pointer

    Insize

    $939.55
    Insize ISQ-TE100-F – 60° Find Point
    ISQ-TE100-F
    SKU:
    ISQ-TE100-F
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.44 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-TE100-F
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640371165
    Package Weight:
    0.44 lb
    Package Length:
    6.1 in
    Package Width:
    3.62 in
    Package Height:
    1.57 in
    Feature 1:
    To find measuring point of NPT or BSPT.
    Feature 2:
    Optional accessory for ISQ-TE100
    $939.55
  • Insize ISQ-TE100-G precision measuring tool

    Insize ISQ-TE100-G – 55° Find Pointer

    Insize

    $939.55
    Insize ISQ-TE100-G – 55° Find Point
    ISQ-TE100-G
    SKU:
    ISQ-TE100-G
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.44 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-TE100-G
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640371172
    Package Weight:
    0.44 lb
    Package Length:
    6.1 in
    Package Width:
    3.62 in
    Package Height:
    1.57 in
    Feature 1:
    To find measuring point of NPT or BSPT.
    Feature 2:
    Optional accessory for ISQ-TE100
    $939.55
  • Insize ISQ-TS120K precision measuring tool

    Insize ISQ-TS120K – Digital LED Tachometer/Stroboscope

    Insize

    $2,127.05
    Insize ISQ-TS120K – Digital LED Tac
    ISQ-TS120K
    SKU:
    ISQ-TS120K
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    4.36 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISQ-TS120K
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    B
    EAN:
    6928640361609
    Package Weight:
    4.36 lb
    Package Length:
    12.99 in
    Package Width:
    11.61 in
    Package Height:
    3.74 in
    Feature 1:
    Flash frequency range: 60 ~ 120000FPM (Flash Per Minute), 1 ~ 2000Hz.
    Feature 2:
    Resolution: FPM 0.1FPM (<100000FPM), 1FPM (≥100000FPM), HZ 0.01Hz (<200Hz), 0.1Hz (≥200Hz).
    Feature 3:
    Setting accuracy ±0.01%. LED light 3pcs American CREE 10W lamp.
    Feature 4:
    Trigger mode internal and external.
    Feature 5:
    Make cyclical motion(rotation,vibration,etc.)objects to appear slow-moving or stationary.
    Feature 6:
    On-line inspection or observation for moving objects.
    Feature 7:
    Measure the rotation or vibration speed and frequency.
    Feature 8:
    Can be triggered from outside by moving objects, make LED flash frequency same as the rotation or vibration.
    $2,127.05
  • Insize ISR-C002 precision measuring tool

    Insize ISR-C002 – Roughness Tester, Range 6299μin, Resolution (Ra) 0.01μin

    Insize

    $2,982.05
    Insize ISR-C002 – Roughness Tester,
    ISR-C002
    SKU:
    ISR-C002
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    4.31 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-C002
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640385834
    Package Weight:
    4.31 lb
    Package Length:
    12.99 in
    Package Width:
    11.22 in
    Package Height:
    3.54 in
    Feature 1:
    21 roughness parameters.
    Feature 2:
    Connected with printer via bluetooth.
    Feature 3:
    Display roughness values, profile and curve.
    Feature 4:
    Memory of maximum 100 results
    Feature 5:
    Automatic power off
    $2,982.05
  • Insize ISR-C002-DGP precision measuring tool

    Insize ISR-C002-DGP – Deep Groove Probe

    Insize

    $2,054.85
    Insize ISR-C002-DGP – Deep Groove P
    ISR-C002-DGP
    SKU:
    ISR-C002-DGP
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.33 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-C002-DGP
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640385858
    Package Weight:
    0.33 lb
    Package Length:
    6.5 in
    Package Width:
    3.74 in
    Package Height:
    1.38 in
    $2,054.85
  • Insize ISR-C002-DGP1 precision measuring tool

    Insize ISR-C002-DGP1 – Deep Groove Probe

    Insize

    $2,195.45
    Insize ISR-C002-DGP1 – Deep Groove
    ISR-C002-DGP1
    SKU:
    ISR-C002-DGP1
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.33 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-C002-DGP1
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6940561975758
    Package Weight:
    0.33 lb
    Package Length:
    6.5 in
    Package Width:
    3.74 in
    Package Height:
    1.38 in
    $2,195.45
  • Insize ISR-C002-ER precision measuring tool

    Insize ISR-C002-ER – Extension Rod

    Insize

    $369.55
    Insize ISR-C002-ER – Extension Rod<
    ISR-C002-ER
    SKU:
    ISR-C002-ER
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.33 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-C002-ER
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640385841
    Package Weight:
    0.33 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    $369.55
  • Insize ISR-C002-PRINTER precision measuring tool

    Insize ISR-C002-PRINTER – Wireless Printer

    Insize

    $914.85
    Insize ISR-C002-PRINTER – Wireless
    ISR-C002-PRINTER
    SKU:
    ISR-C002-PRINTER
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.27 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-C002-PRINTER
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    B
    EAN:
    6928640385889
    Package Weight:
    1.27 lb
    Package Length:
    10.51 in
    Package Width:
    7.68 in
    Package Height:
    4.33 in
    $914.85
  • Insize ISR-C002-PROBE precision measuring tool

    Insize ISR-C002-PROBE – Probe for ISR-C002

    Insize

    $1,029.80
    Insize ISR-C002-PROBE – Probe for I
    ISR-C002-PROBE
    SKU:
    ISR-C002-PROBE
    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:
    ISR-C002-PROBE
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6940561939958
    Package Weight:
    0.12 lb
    Package Length:
    4.92 in
    Package Width:
    4.53 in
    Package Height:
    1.57 in
    Feature 1:
    The probe for ISR-C002
    $1,029.80
  • Insize ISR-C002-SBP precision measuring tool

    Insize ISR-C002-SBP – Small Hole Probe

    Insize

    $2,201.15
    Insize ISR-C002-SBP – Small Hole Pr
    ISR-C002-SBP
    SKU:
    ISR-C002-SBP
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.33 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-C002-SBP
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640385865
    Package Weight:
    0.33 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    $2,201.15
  • Insize ISR-C002-SPC precision measuring tool

    Insize ISR-C002-SPC – Data Transmission Cable

    Insize

    $79.71
    Insize ISR-C002-SPC – Data Transmis
    ISR-C002-SPC
    SKU:
    ISR-C002-SPC
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.35 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-C002-SPC
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6940561944938
    Package Weight:
    0.35 lb
    Package Length:
    6.1 in
    Package Width:
    6.1 in
    Package Height:
    1.77 in
    Feature 1:
    DATA TRANSMISSION CABLE
    $79.71
  • Insize ISR-C002-STAND precision measuring tool

    Insize ISR-C002-STAND – Test Stand

    Insize

    $1,588.40
    Insize ISR-C002-STAND – Test Stand<
    ISR-C002-STAND
    SKU:
    ISR-C002-STAND
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    99.21 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-C002-STAND
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6928640385872
    Package Weight:
    99.21 lb
    Package Length:
    20.87 in
    Package Width:
    12.99 in
    Package Height:
    30.71 in
    $1,588.40