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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 2436-55 precision measuring tool

    Insize 2436-55 – Pistol Grip Groove Bore Gage, Contact Points, .79-2.17IN

    Insize

    $1,445.42
    Insize 2436-55 – Pistol Grip Groove
    2436-55
    SKU:
    2436-55
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.17 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2436-55
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640379789
    Package Weight:
    0.17 lb
    Package Length:
    6.69 in
    Package Width:
    1.57 in
    Package Height:
    1.5 in
    Feature 1:
    Accuracy: 1% of deviation between workpiece size and setting ring, or example measuring inner groove of 21mm, use a 20mm setting ring for calibration, accuracy is (21-20)×1%=0.01mm
    Feature 2:
    Eepeatability .0005'
    Feature 3:
    Optional accessory: digital indicator
    Feature 4:
    Suitable for contact point except 2436-200L, digital indicator, setting ring
    $1,445.42
  • Insize 2436-R100 – Extension Rod for Type B Contact Points, 4IN, Suitable for Type B Contact Points

    Insize 2436-R100 – Extension Rod for Type B Contact Points, 4IN, Suitable for Type B Contact Points

    Insize

    $1,233.40
    Insize 2436-R100 – Extension Rod fo
    2436-R100
    SKU:
    2436-R100
    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:
    2436-R100
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    A
    EAN:
    6928640393426
    Package Weight:
    0.51 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    $1,233.40
  • Insize 2436-R250 – Extension Rod for Type B Contact Points, 10IN, Suitable for Type B Contact Points

    Insize 2436-R250 – Extension Rod for Type B Contact Points, 10IN, Suitable for Type B Contact Points

    Insize

    $1,283.56
    Insize 2436-R250 – Extension Rod fo
    2436-R250
    SKU:
    2436-R250
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.41 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2436-R250
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    A
    EAN:
    6928640393433
    Package Weight:
    0.41 lb
    Package Length:
    11.02 in
    Package Width:
    2.56 in
    Package Height:
    1.57 in
    $1,283.56
  • Insize 2443-E100 precision measuring tool

    Insize 2443-E100 – Bore Gage, 1.969-3.937IN

    Insize

    $4,158.05
    Insize 2443-E100 – Bore Gage, 1.969
    2443-E100
    SKU:
    2443-E100
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.31 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E100
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981131
    Package Weight:
    3.31 lb
    Package Length:
    19.69 in
    Package Width:
    11.81 in
    Package Height:
    3.94 in
    Feature 1:
    Accuracy (without dial comparator) 157uin
    Feature 2:
    Repeatability (without dial comparator) 39uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $4,158.05
  • Insize 2443-E12 precision measuring tool

    Insize 2443-E12 – Bore Gage, .315-.427IN

    Insize

    $7,248.23
    Insize 2443-E12 – Bore Gage, .315-.
    2443-E12
    SKU:
    2443-E12
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.98 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E12
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981094
    Package Weight:
    1.98 lb
    Package Length:
    13.78 in
    Package Width:
    6.3 in
    Package Height:
    2.36 in
    Feature 1:
    Accuracy (without dial comparator) 157uin
    Feature 2:
    Repeatability (without dial comparator) 39uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $7,248.23
  • Insize 2443-E150 precision measuring tool

    Insize 2443-E150 – Bore Gage, 1.969-5.906IN

    Insize

    $4,283.42
    Insize 2443-E150 – Bore Gage, 1.969
    2443-E150
    SKU:
    2443-E150
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    4.41 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E150
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981148
    Package Weight:
    4.41 lb
    Package Length:
    19.69 in
    Package Width:
    11.81 in
    Package Height:
    3.94 in
    Feature 1:
    Accuracy (without dial comparator) 157uin
    Feature 2:
    Repeatability (without dial comparator) 39uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $4,283.42
  • Insize 2443-E160 precision measuring tool

    Insize 2443-E160 – Bore Gage, 3.937-6.299IN

    Insize

    $5,404.29
    Insize 2443-E160 – Bore Gage, 3.937
    2443-E160
    SKU:
    2443-E160
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    4.85 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E160
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981155
    Package Weight:
    4.85 lb
    Package Length:
    23.62 in
    Package Width:
    19.69 in
    Package Height:
    5.51 in
    Feature 1:
    Accuracy (without dial comparator) 157uin
    Feature 2:
    Repeatability (without dial comparator) 39uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $5,404.29
  • Insize 2443-E20 precision measuring tool

    Insize 2443-E20 – Bore Gage, .427-.787IN

    Insize

    $4,942.85
    Insize 2443-E20 – Bore Gage, .427-.
    2443-E20
    SKU:
    2443-E20
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.09 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E20
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981100
    Package Weight:
    2.09 lb
    Package Length:
    13.78 in
    Package Width:
    6.3 in
    Package Height:
    2.36 in
    Feature 1:
    Accuracy (without dial comparator) 157uin
    Feature 2:
    Repeatability (without dial comparator) 39uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $4,942.85
  • Insize 2443-E230 precision measuring tool

    Insize 2443-E230 – Bore Gage, 3.937-9.055IN

    Insize

    $5,620.20
    Insize 2443-E230 – Bore Gage, 3.937
    2443-E230
    SKU:
    2443-E230
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    6.61 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E230
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981162
    Package Weight:
    6.61 lb
    Package Length:
    23.62 in
    Package Width:
    19.69 in
    Package Height:
    5.51 in
    Feature 1:
    Accuracy (without dial comparator) 157uin
    Feature 2:
    Repeatability (without dial comparator) 39uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $5,620.20
  • Insize 2443-E290 precision measuring tool

    Insize 2443-E290 – Bore Gage, 6.299-11.417IN

    Insize

    $7,796.07
    Insize 2443-E290 – Bore Gage, 6.299
    2443-E290
    SKU:
    2443-E290
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    8.82 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E290
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981179
    Package Weight:
    8.82 lb
    Package Length:
    23.62 in
    Package Width:
    19.69 in
    Package Height:
    5.51 in
    Feature 1:
    Accuracy (without dial comparator) 157uin
    Feature 2:
    Repeatability (without dial comparator) 39uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $7,796.07
  • Insize 2443-E35 precision measuring tool

    Insize 2443-E35 – Bore Gage, .787-1.378IN

    Insize

    $3,954.47
    Insize 2443-E35 – Bore Gage, .787-1
    2443-E35
    SKU:
    2443-E35
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.20 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E35
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981117
    Package Weight:
    2.2 lb
    Package Length:
    15.75 in
    Package Width:
    7.09 in
    Package Height:
    3.15 in
    Feature 1:
    Accuracy (without dial comparator) 157uin
    Feature 2:
    Repeatability (without dial comparator) 39uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $3,954.47
  • Insize 2443-E360 precision measuring tool

    Insize 2443-E360 – Bore Gage, 6.299-14.173IN

    Insize

    $7,995.67
    Insize 2443-E360 – Bore Gage, 6.299
    2443-E360
    SKU:
    2443-E360
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    9.92 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E360
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981186
    Package Weight:
    9.92 lb
    Package Length:
    23.62 in
    Package Width:
    19.69 in
    Package Height:
    5.51 in
    Feature 1:
    Accuracy (without dial comparator) 157uin
    Feature 2:
    Repeatability (without dial comparator) 39uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $7,995.67
  • Insize 2443-E410 precision measuring tool

    Insize 2443-E410 – Bore Gage, 11.024-16.142IN

    Insize

    $14,719.27
    Insize 2443-E410 – Bore Gage, 11.02
    2443-E410
    SKU:
    2443-E410
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    11.02 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E410
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981193
    Package Weight:
    11.02 lb
    Package Length:
    31.5 in
    Package Width:
    23.62 in
    Package Height:
    5.91 in
    Feature 1:
    Accuracy (without dial comparator) 197uin
    Feature 2:
    Repeatability (without dial comparator) 87uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $14,719.27
  • Insize 2443-E510 precision measuring tool

    Insize 2443-E510 – Bore Gage, 11.024-20.079IN

    Insize

    $14,981.98
    Insize 2443-E510 – Bore Gage, 11.02
    2443-E510
    SKU:
    2443-E510
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    12.35 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E510
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981209
    Package Weight:
    12.35 lb
    Package Length:
    31.5 in
    Package Width:
    23.62 in
    Package Height:
    5.91 in
    Feature 1:
    Accuracy (without dial comparator) 197uin
    Feature 2:
    Repeatability (without dial comparator) 87uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $14,981.98
  • Insize 2443-E6 precision measuring tool

    Insize 2443-E6 – Bore Gage, .177-.236IN

    Insize

    $9,305.72
    Insize 2443-E6 – Bore Gage, .177-.2
    2443-E6
    SKU:
    2443-E6
    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:
    2443-E6
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981070
    Package Weight:
    1.76 lb
    Package Length:
    13.78 in
    Package Width:
    6.3 in
    Package Height:
    2.36 in
    Feature 1:
    Accuracy (without dial comparator) 157uin
    Feature 2:
    Repeatability (without dial comparator) 39uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $9,305.72
  • Insize 2443-E60 precision measuring tool

    Insize 2443-E60 – Bore Gage, 1.378-2.362IN

    Insize

    $3,894.79
    Insize 2443-E60 – Bore Gage, 1.378-
    2443-E60
    SKU:
    2443-E60
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.43 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E60
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981124
    Package Weight:
    2.43 lb
    Package Length:
    19.69 in
    Package Width:
    11.81 in
    Package Height:
    3.94 in
    Feature 1:
    Accuracy (without dial comparator) 157uin
    Feature 2:
    Repeatability (without dial comparator) 39uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $3,894.79
  • Insize 2443-E8 precision measuring tool

    Insize 2443-E8 – Bore Gage, .236-.315IN

    Insize

    $7,933.98
    Insize 2443-E8 – Bore Gage, .236-.3
    2443-E8
    SKU:
    2443-E8
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.87 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E8
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981087
    Package Weight:
    1.87 lb
    Package Length:
    13.78 in
    Package Width:
    6.3 in
    Package Height:
    2.36 in
    Feature 1:
    Accuracy (without dial comparator) 157uin
    Feature 2:
    Repeatability (without dial comparator) 39uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $7,933.98
  • Insize 2443-E800 precision measuring tool

    Insize 2443-E800 – Bore Gage, 15.748-31.496IN

    Insize

    $19,893.55
    Insize 2443-E800 – Bore Gage, 15.74
    2443-E800
    SKU:
    2443-E800
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    14.33 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2443-E800
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6940561981216
    Package Weight:
    14.33 lb
    Package Length:
    31.5 in
    Package Width:
    23.62 in
    Package Height:
    5.91 in
    Feature 1:
    Accuracy (without dial comparator) 197uin
    Feature 2:
    Repeatability (without dial comparator) 87uin
    Feature 3:
    Applicable for .001' ir .0001' or .00005' graduation dial indicators
    Feature 4:
    Carbide contact points
    Feature 5:
    Optional accessory: setting ring, bore gage setter
    $19,893.55
  • Insize 2480-06 precision measuring tool

    Insize 2480-06 – Large Range Back Plunger Type Dial Test Indicator, .06IN

    Insize

    $240.35
    Insize 2480-06 – Large Range Back P
    2480-06
    SKU:
    2480-06
    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:
    2480-06
    Product Family:
    Indicators and Test Indicators
    Supplier Category Code:
    A
    EAN:
    6928640387333
    Package Weight:
    0.77 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
    $240.35
  • Insize 2491-250 precision measuring tool

    Insize 2491-250 – Stand for Split Type Dial Bore Gage

    Insize

    $5,615.82
    Insize 2491-250 – Stand for Split T
    2491-250
    SKU:
    2491-250
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    23.02 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2491-250
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640310805
    Package Weight:
    23.02 lb
    Package Length:
    20.47 in
    Package Width:
    12.8 in
    Package Height:
    7.87 in
    Feature 1:
    For split type dial bore gages 2421, 2426, 2427 and 2429
    Feature 2:
    Maximum working stroke 90mm
    Feature 3:
    Accept dial indicator to show measuring depth
    $5,615.82