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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 4788-300E precision measuring tool

    Insize 4788-300E – Bench Center

    Insize

    $6,644.30
    Insize 4788-300E – Bench Center
    4788-300E
    SKU:
    4788-300E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    98.11 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4788-300E
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640358357
    Package Weight:
    98.11 lb
    Package Length:
    26.5 in
    Package Width:
    10.71 in
    Package Height:
    18.19 in
    Feature 1:
    BENCH CENTER
    $6,644.30
  • Insize 4788-400E precision measuring tool

    Insize 4788-400E – Bench Center

    Insize

    $9,151.35
    Insize 4788-400E – Bench Center
    4788-400E
    SKU:
    4788-400E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    194.01 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4788-400E
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640358364
    Package Weight:
    194.01 lb
    Package Length:
    40.16 in
    Package Width:
    13.23 in
    Package Height:
    20.47 in
    Feature 1:
    BENCH CENTER
    $9,151.35
  • Insize 4788-600E precision measuring tool

    Insize 4788-600E – Bench Center

    Insize

    $13,530.85
    Insize 4788-600E – Bench Center
    4788-600E
    SKU:
    4788-600E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    240.31 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4788-600E
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640358371
    Package Weight:
    240.31 lb
    Package Length:
    40.16 in
    Package Width:
    13.23 in
    Package Height:
    20.47 in
    Feature 1:
    BENCH CENTER
    $13,530.85
  • Insize 4788-600H2E precision measuring tool

    Insize 4788-600H2E – Bench Center

    Insize

    $18,384.40
    Insize 4788-600H2E – Bench Center
    4788-600H2E
    SKU:
    4788-600H2E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    284.40 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4788-600H2E
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640358388
    Package Weight:
    284.4 lb
    Package Length:
    40.16 in
    Package Width:
    13.23 in
    Package Height:
    20.47 in
    Feature 1:
    BENCH CENTER
    $18,384.40
  • Insize 4788-D10E precision measuring tool

    Insize 4788-D10E – Bench Center, Low Accuracy, Distance Between Two Centers 39.370IN

    Insize

    $16,077.80
    Insize 4788-D10E – Bench Center, Lo
    4788-D10E
    SKU:
    4788-D10E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    330.70 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4788-D10E
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640383267
    Package Weight:
    330.7 lb
    Package Length:
    59.0551 in
    Package Width:
    14.96 in
    Package Height:
    21.26 in
    Feature 1:
    BENCH CENTER, Distance between two centers 39.370', Low accuracy
    $16,077.80
  • Insize 4788-D2E precision measuring tool

    Insize 4788-D2E – Bench Center, Low Accuracy, Distance Between Two Centers 7.874IN

    Insize

    $4,541.95
    Insize 4788-D2E – Bench Center, Low
    4788-D2E
    SKU:
    4788-D2E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    77.16 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4788-D2E
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640383212
    Package Weight:
    77.16 lb
    Package Length:
    26.38 in
    Package Width:
    10.63 in
    Package Height:
    18.11 in
    Feature 1:
    BENCH CENTER, Distance between two centers 7.874', Low accuracy
    $4,541.95
  • Insize 4788-D3E precision measuring tool

    Insize 4788-D3E – Bench Center, Low Accuracy, Distance Between Two Centers 11.811IN

    Insize

    $5,250.65
    Insize 4788-D3E – Bench Center, Low
    4788-D3E
    SKU:
    4788-D3E
    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:
    4788-D3E
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640383229
    Package Weight:
    99.21 lb
    Package Length:
    26.38 in
    Package Width:
    10.63 in
    Package Height:
    18.11 in
    Feature 1:
    BENCH CENTER, Distance between two centers 11.811', Low accuracy
    $5,250.65
  • Insize 4788-D4E precision measuring tool

    Insize 4788-D4E – Bench Center, Low Accuracy, Distance Between Two Centers 15.748IN

    Insize

    $8,071.20
    Insize 4788-D4E – Bench Center, Low
    4788-D4E
    SKU:
    4788-D4E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    194.01 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4788-D4E
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640383236
    Package Weight:
    194.01 lb
    Package Length:
    40.1575 in
    Package Width:
    13.39 in
    Package Height:
    20.47 in
    Feature 1:
    BENCH CENTER, Distance between two centers 15.748', Low accuracy
    $8,071.20
  • Insize 4788-D6E precision measuring tool

    Insize 4788-D6E – Bench Center, Low Accuracy, Distance Between Two Centers 23.622IN

    Insize

    $11,375.30
    Insize 4788-D6E – Bench Center, Low
    4788-D6E
    SKU:
    4788-D6E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    240.31 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4788-D6E
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640383243
    Package Weight:
    240.31 lb
    Package Length:
    40.1575 in
    Package Width:
    13.39 in
    Package Height:
    20.47 in
    Feature 1:
    BENCH CENTER, Distance between two centers 23.622', Low accuracy
    $11,375.30
  • Insize 4788-D8E precision measuring tool

    Insize 4788-D8E – Bench Center, Low Accuracy, Distance Between Two Centers 31.496IN

    Insize

    $14,491.30
    Insize 4788-D8E – Bench Center, Low
    4788-D8E
    SKU:
    4788-D8E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    282.19 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4788-D8E
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640383250
    Package Weight:
    282.19 lb
    Package Length:
    47.2441 in
    Package Width:
    14.96 in
    Package Height:
    21.26 in
    Feature 1:
    BENCH CENTER, Distance between two centers 31.496', Low accuracy
    $14,491.30
  • Insize 4789-1E precision measuring tool

    Insize 4789-1E – Concentricity Gage

    Insize

    $2,004.50
    Insize 4789-1E – Concentricity Gage
    4789-1E
    SKU:
    4789-1E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    10.43 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4789-1E
    Product Family:
    Indicators and Test Indicators
    Supplier Category Code:
    B
    EAN:
    6928640358296
    Package Weight:
    10.43 lb
    Package Length:
    13.39 in
    Package Width:
    6.69 in
    Package Height:
    6.69 in
    Feature 1:
    Applicable diameter .138' DIA~.984' DIA
    Feature 2:
    Accuracy .00008'.
    Feature 3:
    Optional accessory: dial test indicator, mini magnetic stand (part no. 6224-40E).
    $2,004.50
  • Insize 4789-2E precision measuring tool

    Insize 4789-2E – Concentricity Gage

    Insize

    $2,215.40
    Insize 4789-2E – Concentricity Gage
    4789-2E
    SKU:
    4789-2E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    10.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4789-2E
    Product Family:
    Indicators and Test Indicators
    Supplier Category Code:
    B
    EAN:
    6928640374456
    Package Weight:
    10.03 lb
    Package Length:
    12.99 in
    Package Width:
    6.38 in
    Package Height:
    6.3 in
    Feature 1:
    Applicable diameter .039' DIA~.984' DIA
    Feature 2:
    Accuracy .00008'
    Feature 3:
    Optional accessory: dial test indicator, mini magnetic stand (part no. 6224-40E).
    $2,215.40
  • Insize 4789-3E precision measuring tool

    Insize 4789-3E – Concentricity Gage

    Insize

    $2,081.45
    Insize 4789-3E – Concentricity Gage
    4789-3E
    SKU:
    4789-3E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    10.39 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4789-3E
    Product Family:
    Indicators and Test Indicators
    Supplier Category Code:
    B
    EAN:
    6928640358302
    Package Weight:
    10.39 lb
    Package Length:
    13.39 in
    Package Width:
    6.69 in
    Package Height:
    6.69 in
    Feature 1:
    Applicable diameter .039' DIA~.984' DIA
    Feature 2:
    Accuracy .00008'.
    Feature 3:
    Optional accessory: dial test indicator, mini magnetic stand (part no. 6224-40E).
    $2,081.45
  • Insize 4790-0100 precision measuring tool

    Insize 4790-0100 – 90° Beveled Edge Square, Grade 00, 3.9x2.8IN

    Insize

    $84.46
    Insize 4790-0100 – 90° Beveled Edge
    4790-0100
    SKU:
    4790-0100
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.53 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4790-0100
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640317590
    Package Weight:
    0.53 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    Satin chrome plating.
    Feature 2:
    Beveled edges for inside and outside measurement.
    Feature 3:
    Made of hardened stainless steel.
    $84.46
  • Insize 4790-0150 precision measuring tool

    Insize 4790-0150 – 90° Beveled Edge Square, Grade 00, 5.9x3.9IN

    Insize

    $147.25
    Insize 4790-0150 – 90° Beveled Edge
    4790-0150
    SKU:
    4790-0150
    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:
    4790-0150
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640317606
    Package Weight:
    1.27 lb
    Package Length:
    8.9 in
    Package Width:
    5.04 in
    Package Height:
    1.69 in
    Feature 1:
    Satin chrome plating.
    Feature 2:
    Beveled edges for inside and outside measurement.
    Feature 3:
    Made of hardened stainless steel.
    $147.25
  • Insize 4790-0200 precision measuring tool

    Insize 4790-0200 – 90° Beveled Edge Square, Grade 00, 7.9x5.1IN

    Insize

    $189.05
    Insize 4790-0200 – 90° Beveled Edge
    4790-0200
    SKU:
    4790-0200
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.14 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4790-0200
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640317613
    Package Weight:
    2.14 lb
    Package Length:
    12.09 in
    Package Width:
    6.97 in
    Package Height:
    1.73 in
    Feature 1:
    Satin chrome plating.
    Feature 2:
    Beveled edges for inside and outside measurement.
    Feature 3:
    Made of hardened stainless steel.
    $189.05
  • Insize 4790-0250 precision measuring tool

    Insize 4790-0250 – 90° Beveled Edge Square, Grade 00, 9.8x6.5IN

    Insize

    $274.55
    Insize 4790-0250 – 90° Beveled Edge
    4790-0250
    SKU:
    4790-0250
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.90 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4790-0250
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640317620
    Package Weight:
    2.9 lb
    Package Length:
    13.31 in
    Package Width:
    7.91 in
    Package Height:
    1.73 in
    Feature 1:
    Satin chrome plating.
    Feature 2:
    Beveled edges for inside and outside measurement.
    Feature 3:
    Made of hardened stainless steel.
    $274.55
  • Insize 4790-0300 precision measuring tool

    Insize 4790-0300 – 90° Beveled Edge Square, Grade 00, 11.8x7.9IN

    Insize

    $346.75
    Insize 4790-0300 – 90° Beveled Edge
    4790-0300
    SKU:
    4790-0300
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.42 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4790-0300
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640317637
    Package Weight:
    3.42 lb
    Package Length:
    12.99 in
    Package Width:
    8.86 in
    Package Height:
    1.38 in
    Feature 1:
    Satin chrome plating.
    Feature 2:
    Beveled edges for inside and outside measurement.
    Feature 3:
    Made of hardened stainless steel.
    $346.75
  • Insize 4790-050 precision measuring tool

    Insize 4790-050 – 90° Beveled Edge Square, Grade 00, 2.0x1.6IN

    Insize

    $64.98
    Insize 4790-050 – 90° Beveled Edge
    4790-050
    SKU:
    4790-050
    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:
    4790-050
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640317576
    Package Weight:
    0.13 lb
    Package Length:
    3.07 in
    Package Width:
    3.07 in
    Package Height:
    1.18 in
    Feature 1:
    Satin chrome plating.
    Feature 2:
    Beveled edges for inside and outside measurement.
    Feature 3:
    Made of hardened stainless steel.
    $64.98
  • Insize 4790-075 precision measuring tool

    Insize 4790-075 – 90° Beveled Edge Square, Grade 00, 3.0x2.0IN

    Insize

    $74.96
    Insize 4790-075 – 90° Beveled Edge
    4790-075
    SKU:
    4790-075
    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:
    4790-075
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640317583
    Package Weight:
    0.41 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    Satin chrome plating.
    Feature 2:
    Beveled edges for inside and outside measurement.
    Feature 3:
    Made of hardened stainless steel.
    $74.96