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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 2381-35 precision measuring tool

    Insize 2381-35 – Dial Test Indicator, .03IN

    Insize

    $131.10
    Insize 2381-35 – Dial Test Indicato
    2381-35
    SKU:
    2381-35
    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:
    2381-35
    Product Family:
    Indicators and Test Indicators
    Supplier Category Code:
    A
    EAN:
    6928640329708
    Package Weight:
    0.57 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Graduation .0005'
    Feature 2:
    Jeweled bearing.
    Feature 3:
    Carbide contact point.
    Feature 4:
    Two measuring directions.
    Feature 5:
    Anti magnetic body.
    Feature 6:
    Supplied with two clamps: 5/32' DIA and 3/8' DIA.
    Feature 7:
    Optional accessory: styli.
    $131.10
  • Insize 2383-35A precision measuring tool

    Insize 2383-35A – Long Styli Dial Test Indicator, .03IN

    Insize

    $200.45
    Insize 2383-35A – Long Styli Dial T
    2383-35A
    SKU:
    2383-35A
    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:
    2383-35A
    Product Family:
    Indicators and Test Indicators
    Supplier Category Code:
    A
    EAN:
    6928640374784
    Package Weight:
    0.58 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Graduation .0005'
    Feature 2:
    Jeweled bearing. Carbide contact point.
    Feature 3:
    Two measuring directions. Anti magnetic body.
    Feature 4:
    Supplied with two clamps: 5/32' DIA and 3/8' DIA.
    Feature 5:
    Optional accessory: styli
    $200.45
  • Insize 2386-006A precision measuring tool

    Insize 2386-006A – Large Range Dial Test Indicator, .06IN

    Insize

    $223.25
    Insize 2386-006A – Large Range Dial
    2386-006A
    SKU:
    2386-006A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.79 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2386-006A
    Product Family:
    Indicators and Test Indicators
    Supplier Category Code:
    A
    EAN:
    6928640351464
    Package Weight:
    0.79 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    2.64 in
    Feature 1:
    Graduation .0005'
    Feature 2:
    Jeweled bearing.
    Feature 3:
    Carbide contact point.
    Feature 4:
    Two measuring directions.
    Feature 5:
    Anti magnetic body.
    Feature 6:
    Supplied with one clamp: 5/32' DIA and 3/8' DIA.
    Feature 7:
    Optional accessory: styli.
    $223.25
  • Insize 2386-16A precision measuring tool

    Insize 2386-16A – Large Range Dial Test Indicator, 1.6MM, Graduation 0.01MM

    Insize

    $235.60
    Insize 2386-16A – Large Range Dial
    2386-16A
    SKU:
    2386-16A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.79 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2386-16A
    Product Family:
    Indicators and Test Indicators
    Supplier Category Code:
    A
    EAN:
    6928640370571
    Package Weight:
    0.79 lb
    Package Length:
    6.1 in
    Package Width:
    3.8 in
    Package Height:
    2.6 in
    Feature 1:
    Jeweled bearing.
    Feature 2:
    Carbide contact point.
    Feature 3:
    Two measuring directions.
    Feature 4:
    Anti magnetic body.
    Feature 5:
    Supplied with two clamps: diameter Ø4mm and Ø8mm.
    Feature 6:
    Optional accessory: styli
    $235.60
  • Insize 2394-45A precision measuring tool

    Insize 2394-45A – Zero Setter, Height 4IN

    Insize

    $554.80
    Insize 2394-45A – Zero Setter, Heig
    2394-45A
    SKU:
    2394-45A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.76 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2394-45A
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    A
    EAN:
    6928640359552
    Package Weight:
    3.76 lb
    Package Length:
    5.91 in
    Package Width:
    4.33 in
    Package Height:
    3.94 in
    Feature 1:
    Magnetic base with on-off switch.
    Feature 2:
    Height: 4'
    Feature 3:
    Accuracy: ± .0004'
    $554.80
  • Insize 2395-400 precision measuring tool

    Insize 2395-400 – Bore Gage Setter, .7-16IN

    Insize

    $1,961.75
    Insize 2395-400 – Bore Gage Setter,
    2395-400
    SKU:
    2395-400
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    22.91 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2395-400
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640310027
    Package Weight:
    22.91 lb
    Package Length:
    24.61 in
    Package Width:
    7.48 in
    Package Height:
    6.69 in
    Feature 1:
    Used together with gage blocks to set bore gages.
    Feature 2:
    Range .7 to 16'
    Feature 3:
    For setting bore gages to a desired measurement
    $1,961.75
  • Insize 2397-25A precision measuring tool

    Insize 2397-25A – Zero Setter, Height 2IN

    Insize

    $424.65
    Insize 2397-25A – Zero Setter, Heig
    2397-25A
    SKU:
    2397-25A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.32 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2397-25A
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    A
    EAN:
    6928640359545
    Package Weight:
    2.32 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    2.64 in
    Feature 1:
    Magnetic base.
    Feature 2:
    Height: 2'
    Feature 3:
    Accuracy: ± .0004'
    $424.65
  • Insize 2397-502A precision measuring tool

    Insize 2397-502A – Zero Setter, 50MM

    Insize

    $350.55
    Insize 2397-502A – Zero Setter, 50M
    2397-502A
    SKU:
    2397-502A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.36 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2397-502A
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    A
    EAN:
    6928640321269
    Package Weight:
    2.36 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    2.64 in
    Feature 1:
    Magnetic base.
    $350.55
  • Insize 2398-03 precision measuring tool

    Insize 2398-03 – Back Plunger Type Dial Test Indicator, .03IN

    Insize

    $136.80
    Insize 2398-03 – Back Plunger Type
    2398-03
    SKU:
    2398-03
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.71 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2398-03
    Product Family:
    Indicators and Test Indicators
    Supplier Category Code:
    A
    EAN:
    6928640329715
    Package Weight:
    0.71 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    2.64 in
    Feature 1:
    Graduation .0005'
    Feature 2:
    Dial reading 0-15-0
    Feature 3:
    Jeweled bearing.
    Feature 4:
    Carbide contact point.
    Feature 5:
    Two measuring directions.
    Feature 6:
    Anti magnetic body.
    Feature 7:
    Supplied with two clamps: 5/32' DIA and 3/8' DIA.
    Feature 8:
    Optional accessory: styli.
    $136.80
  • Insize 2399-03 precision measuring tool

    Insize 2399-03 – Tilted Face Type Dial Test Indicator, .03IN

    Insize

    $139.65
    Insize 2399-03 – Tilted Face Type D
    2399-03
    SKU:
    2399-03
    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:
    2399-03
    Product Family:
    Indicators and Test Indicators
    Supplier Category Code:
    A
    EAN:
    6928640358050
    Package Weight:
    0.73 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    2.64 in
    Feature 1:
    Graduation .0005'
    Feature 2:
    Dial reading 0-15-0
    Feature 3:
    Jeweled bearing.
    Feature 4:
    Carbide contact point.
    Feature 5:
    Two measuring directions.
    Feature 6:
    Anti magnetic body.
    Feature 7:
    Supplied with two clamps: 5/32' DIA and 3/8' DIA.
    Feature 8:
    Optional accessory: styli
    $139.65
  • Insize 2421-E12 precision measuring tool

    Insize 2421-E12 – Split Type Dial Bore Gage Set, .303-.492IN

    Insize

    $3,001.50
    Insize 2421-E12 – Split Type Dial B
    2421-E12
    SKU:
    2421-E12
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.76 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2421-E12
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640356940
    Package Weight:
    1.76 lb
    Package Length:
    12.99 in
    Package Width:
    6.89 in
    Package Height:
    1.97 in
    Feature 1:
    Split type contact points.
    Feature 2:
    Accuracy (without dial indicator): 118μin (measuring range .163'~.394'), 157μin (measuring range .394'~.811').
    Feature 3:
    Repeatability (without dial indicator): .39μin.
    Feature 4:
    Setting rings and dial indicators (graduation .001' or .0001' or .00005') are optional.
    $3,001.50
  • Insize 2421-E121 precision measuring tool

    Insize 2421-E121 – Split Type Dial Bore Gage Set, .163-.492IN

    Insize

    $5,007.57
    Insize 2421-E121 – Split Type Dial
    2421-E121
    SKU:
    2421-E121
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.85 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2421-E121
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640356964
    Package Weight:
    1.85 lb
    Package Length:
    13.39 in
    Package Width:
    7.48 in
    Package Height:
    2.36 in
    Feature 1:
    Split type contact points.
    Feature 2:
    Accuracy (without dial indicator): 118μin (measuring range .163'~.394'), 157μin (measuring range .394'~.811').
    Feature 3:
    Repeatability (without dial indicator): .39μin.
    Feature 4:
    Setting rings and dial indicators (graduation .001' or .0001' or .00005') are optional.
    $5,007.57
  • Insize 2421-E1D4 precision measuring tool

    Insize 2421-E1D4 – Split Type Dial Bore Gage Set, .037-.061IN

    Insize

    $2,886.51
    Insize 2421-E1D4 – Split Type Dial
    2421-E1D4
    SKU:
    2421-E1D4
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.71 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2421-E1D4
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640356919
    Package Weight:
    1.71 lb
    Package Length:
    13.39 in
    Package Width:
    7.48 in
    Package Height:
    2.36 in
    Feature 1:
    Split type contact points.
    Feature 2:
    Accuracy (without dial indicator): 118μin (measuring range .163'~.394'), 157μin (measuring range .394'~.811').
    Feature 3:
    Repeatability (without dial indicator): .39μin.
    Feature 4:
    Setting rings and dial indicators (graduation .001' or .0001' or .00005') are optional.
    $2,886.51
  • Insize 2421-E20 precision measuring tool

    Insize 2421-E20 – Split Type Dial Bore Gage Set, .480-.811IN

    Insize

    $3,623.69
    Insize 2421-E20 – Split Type Dial B
    2421-E20
    SKU:
    2421-E20
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.97 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2421-E20
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640356957
    Package Weight:
    1.97 lb
    Package Length:
    13.19 in
    Package Width:
    7.48 in
    Package Height:
    2.76 in
    Feature 1:
    Split type contact points.
    Feature 2:
    Accuracy (without dial indicator): 118μin (measuring range .163'~.394'), 157μin (measuring range .394'~.811').
    Feature 3:
    Repeatability (without dial indicator): .39μin.
    Feature 4:
    Setting rings and dial indicators (graduation .001' or .0001' or .00005') are optional.
    $3,623.69
  • Insize 2421-E4 precision measuring tool

    Insize 2421-E4 – Split Type Dial Bore Gage Set, .059-.165IN

    Insize

    $3,847.39
    Insize 2421-E4 – Split Type Dial Bo
    2421-E4
    SKU:
    2421-E4
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.70 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2421-E4
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640356926
    Package Weight:
    1.7 lb
    Package Length:
    12.6 in
    Package Width:
    6.89 in
    Package Height:
    2.36 in
    Feature 1:
    Split type contact points.
    Feature 2:
    Accuracy (without dial indicator): 118μin (measuring range .163'~.394'), 157μin (measuring range .394'~.811').
    Feature 3:
    Repeatability (without dial indicator): .39μin.
    Feature 4:
    Setting rings and dial indicators (graduation .001' or .0001' or .00005') are optional.
    $3,847.39
  • Insize 2421-E7D5 precision measuring tool

    Insize 2421-E7D5 – Split Type Dial Bore Gage Set, .163-.307IN

    Insize

    $2,941.06
    Insize 2421-E7D5 – Split Type Dial
    2421-E7D5
    SKU:
    2421-E7D5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.72 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2421-E7D5
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640356933
    Package Weight:
    1.72 lb
    Package Length:
    13.39 in
    Package Width:
    7.48 in
    Package Height:
    2.36 in
    Feature 1:
    Split type contact points.
    Feature 2:
    Accuracy (without dial indicator): 118μin (measuring range .163'~.394'), 157μin (measuring range .394'~.811').
    Feature 3:
    Repeatability (without dial indicator): .39μin.
    Feature 4:
    Setting rings and dial indicators (graduation .001' or .0001' or .00005') are optional.
    $2,941.06
  • Insize 2422-E150 precision measuring tool

    Insize 2422-E150 – Bore Gage, 2.0-5.9IN

    Insize

    $1,270.38
    Insize 2422-E150 – Bore Gage, 2.0-5
    2422-E150
    SKU:
    2422-E150
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.72 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2422-E150
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640357091
    Package Weight:
    2.72 lb
    Package Length:
    13.78 in
    Package Width:
    6.3 in
    Package Height:
    2.76 in
    Feature 1:
    Applicable for .001' or .0001' or .00005' graduation dial indicators.
    Feature 2:
    Optional accessory: Dial indicator or dial comparator, Setting ring (part no. 6313), Long handle (part no. 7352).
    Feature 3:
    Range: 2.0-5.9'
    $1,270.38
  • Insize 2422-E300 precision measuring tool

    Insize 2422-E300 – Bore Gage, 5.9-11.8IN

    Insize

    $2,255.52
    Insize 2422-E300 – Bore Gage, 5.9-1
    2422-E300
    SKU:
    2422-E300
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    8.55 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2422-E300
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640357107
    Package Weight:
    8.55 lb
    Package Length:
    19.29 in
    Package Width:
    11.02 in
    Package Height:
    5.51 in
    Feature 1:
    Applicable for .001' or .0001' or .00005' graduation dial indicators.
    Feature 2:
    Optional accessory: Dial indicator or dial comparator, Setting ring (part no. 6313), Long handle (part no. 7352).
    Feature 3:
    Range: 5.9-11.8'
    $2,255.52
  • Insize 2422-E35 precision measuring tool

    Insize 2422-E35 – Bore Gage, .7-1.4IN

    Insize

    $1,132.18
    Insize 2422-E35 – Bore Gage, .7-1.4
    2422-E35
    SKU:
    2422-E35
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.17 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2422-E35
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640357077
    Package Weight:
    2.17 lb
    Package Length:
    15.75 in
    Package Width:
    7.09 in
    Package Height:
    3.15 in
    Feature 1:
    Applicable for .001' or .0001' or .00005' graduation dial indicators.
    Feature 2:
    Optional accessory: Dial indicator or dial comparator, Setting ring (part no. 6313), Long handle (part no. 7352).
    Feature 3:
    Range: .7-1.4'
    $1,132.18
  • Insize 2422-E510 precision measuring tool

    Insize 2422-E510 – Bore Gage, 11.0-20.1IN

    Insize

    $9,031.00
    Insize 2422-E510 – Bore Gage, 11.0-
    2422-E510
    SKU:
    2422-E510
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    12.21 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2422-E510
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640357114
    Package Weight:
    12.21 lb
    Package Length:
    26.18 in
    Package Width:
    13.39 in
    Package Height:
    2.95 in
    Feature 1:
    Applicable for .001' or .0001' or .00005' graduation dial indicators.
    Feature 2:
    Optional accessory: Dial indicator or dial comparator, Setting ring (part no. 6313), Long handle (part no. 7352).
    Feature 3:
    Range: 11.0-20.1'
    $9,031.00