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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 ISR-RS526X precision measuring tool

    Insize ISR-RS526X – Surface Roughness Reference Specimen, 124μin/3.15μm

    Insize

    $1,128.49
    Insize ISR-RS526X – Surface Roughne
    ISR-RS526X
    SKU:
    ISR-RS526X
    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:
    ISR-RS526X
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640324581
    Package Weight:
    0.41 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    To calibrate roughness testers.
    Feature 2:
    Meets ISO 5436-1: 2000.
    Feature 3:
    Rust proof, made of pure Nickel.
    $1,128.49
  • Insize ISR-RS527X precision measuring tool

    Insize ISR-RS527X – Surface Roughness Reference Specimen, 120μin/3.0μm

    Insize

    $1,128.49
    Insize ISR-RS527X – Surface Roughne
    ISR-RS527X
    SKU:
    ISR-RS527X
    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:
    ISR-RS527X
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640324598
    Package Weight:
    0.41 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    To calibrate roughness testers.
    Feature 2:
    Meets ISO 5436-1: 2000.
    Feature 3:
    Rust proof, made of pure Nickel.
    $1,128.49
  • Insize ISR-RS528X precision measuring tool

    Insize ISR-RS528X – Surface Roughness Reference Specimen, 20μin/0.5μm

    Insize

    $1,128.49
    Insize ISR-RS528X – Surface Roughne
    ISR-RS528X
    SKU:
    ISR-RS528X
    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:
    ISR-RS528X
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640324604
    Package Weight:
    0.41 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    To calibrate roughness testers.
    Feature 2:
    Meets ISO 5436-1: 2000.
    Feature 3:
    Rust proof, made of pure Nickel.
    $1,128.49
  • Insize ISR-RS529X precision measuring tool

    Insize ISR-RS529X – Surface Roughness Reference Specimen, 4μin/0.1μm

    Insize

    $1,385.67
    Insize ISR-RS529X – Surface Roughne
    ISR-RS529X
    SKU:
    ISR-RS529X
    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:
    ISR-RS529X
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640324611
    Package Weight:
    0.41 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    To calibrate roughness testers.
    Feature 2:
    Meets ISO 5436-1: 2000.
    Feature 3:
    Rust proof, made of pure Nickel.
    $1,385.67
  • Insize ISR-RS530X precision measuring tool

    Insize ISR-RS530X – Surface Roughness Reference Specimen, 40μin/1.0μm

    Insize

    $1,078.87
    Insize ISR-RS530X – Surface Roughne
    ISR-RS530X
    SKU:
    ISR-RS530X
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.39 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-RS530X
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640324628
    Package Weight:
    0.39 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    To calibrate roughness testers.
    Feature 2:
    Meets ISO 5436-1: 2000.
    Feature 3:
    Rust proof, made of pure Nickel.
    $1,078.87
  • Insize ISR-RS531X precision measuring tool

    Insize ISR-RS531X – Surface Roughness Reference Specimen, 14μin/0.3μm

    Insize

    $1,411.42
    Insize ISR-RS531X – Surface Roughne
    ISR-RS531X
    SKU:
    ISR-RS531X
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.38 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-RS531X
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640324635
    Package Weight:
    0.38 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    To calibrate roughness testers.
    Feature 2:
    Meets ISO 5436-1: 2000.
    Feature 3:
    Rust proof, made of pure Nickel.
    $1,411.42
  • Insize ISR-S-SOFTWARE precision measuring tool

    Insize ISR-S-SOFTWARE – USB Cable and Software

    Insize

    $2,284.75
    Insize ISR-S-SOFTWARE – USB Cable a
    ISR-S-SOFTWARE
    SKU:
    ISR-S-SOFTWARE
    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:
    ISR-S-SOFTWARE
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6928640323966
    Package Weight:
    0.5027 lb
    Package Length:
    6.6929 in
    Package Width:
    6.2992 in
    Package Height:
    1.9685 in
    Feature 1:
    USB CABLE AND SOFTWARE
    $2,284.75
  • Insize ISR-S1000B precision measuring tool

    Insize ISR-S1000B – Surface Roughness Tester

    Insize

    $16,474.90
    Insize ISR-S1000B – Surface Roughne
    ISR-S1000B
    SKU:
    ISR-S1000B
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    24.35 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-S1000B
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    B
    EAN:
    6928640324345
    Package Weight:
    24.35 lb
    Package Length:
    23.23 in
    Package Width:
    17.32 in
    Package Height:
    13.58 in
    Feature 1:
    Range 39370μin. Accuracy ±3%. Resolution .01μin. Probe: type inductive, stylus radius/angle 196μin/90°, stylus material diamond.
    Feature 2:
    Measuring force 0.003ozf. Cut off .003/.01/.03/.1/.3'. Traverse speed .02'/s or .04'/s.
    Feature 3:
    48 roughness parameters according to ISO-4287, JIS-B0601, ISO-12085, JIS-B0631. Automatic probe leveling. Measuring range up to 39370μin, can measure grit and shot blasting.
    Feature 4:
    Traverse length up to 1.97'. The probe can rotate from -90° to +90°.
    Feature 5:
    Color touch screen, display roughness values, profile and curves.
    Feature 6:
    Can print roughness values, profile and curves.
    Feature 7:
    Memory of maximum 1000 results.
    Feature 8:
    Can set tolerance.
    $16,474.90
  • Insize ISR-S1000B-STAND precision measuring tool

    Insize ISR-S1000B-STAND – Test Stand for ISR-S1000B

    Insize

    $3,689.80
    Insize ISR-S1000B-STAND – Test Stan
    ISR-S1000B-STAND
    SKU:
    ISR-S1000B-STAND
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    110.23 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-S1000B-STAND
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6928640387111
    Package Weight:
    110.23 lb
    Package Length:
    27.56 in
    Package Width:
    22.44 in
    Package Height:
    11.81 in
    Feature 1:
    Optional Accessory
    $3,689.80
  • Insize ISR-S300 precision measuring tool

    Insize ISR-S300 – Roughness Tester

    Insize

    $4,823.15
    Insize ISR-S300 – Roughness Tester<
    ISR-S300
    SKU:
    ISR-S300
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    8.40 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-S300
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640324314
    Package Weight:
    8.4 lb
    Package Length:
    16.54 in
    Package Width:
    12.6 in
    Package Height:
    6.3 in
    Feature 1:
    ROUGHNESS TESTER
    $4,823.15
  • Insize ISR-S400 precision measuring tool

    Insize ISR-S400 – Roughness Tester

    Insize

    $5,284.85
    Insize ISR-S400 – Roughness Tester<
    ISR-S400
    SKU:
    ISR-S400
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    8.61 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-S400
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    B
    EAN:
    6928640323942
    Package Weight:
    8.61 lb
    Package Length:
    16.34 in
    Package Width:
    14.17 in
    Package Height:
    6.3 in
    Feature 1:
    Range: Ra 0~3937μin, Rt 1.97~15748μin. Accuracy ±3%. Resolution .01μin.
    Feature 2:
    Probe: type inductive, stylus radius/angle 196μin/90°, stylus material diamond. Measuring force 0.003ozf. Cut off .01/.03/.1'. Fixed probe.
    Feature 3:
    Automatic probe leveling. 12 roughness parameters. Can set tolerance.
    Feature 4:
    Measuring range up to 15748μin,measure grit and shot blasting. Traverse length up to .63'.
    Feature 5:
    The probe can be set at 90°or 270°, for transverse measurement.
    $5,284.85
  • Insize ISR-S400-DK precision measuring tool

    Insize ISR-S400-DK – Heavy Duty Test Stand

    Insize

    $2,769.25
    Insize ISR-S400-DK – Heavy Duty Tes
    ISR-S400-DK
    SKU:
    ISR-S400-DK
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    98.39 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-S400-DK
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    B
    EAN:
    6928640371189
    Package Weight:
    98.39 lb
    Package Length:
    20.87 in
    Package Width:
    14.96 in
    Package Height:
    29.92 in
    $2,769.25
  • Insize ISR-S400-ER100 precision measuring tool

    Insize ISR-S400-ER100 – Extension Rod

    Insize

    $797.05
    Insize ISR-S400-ER100 – Extension R
    ISR-S400-ER100
    SKU:
    ISR-S400-ER100
    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-S400-ER100
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640323973
    Package Weight:
    0.35 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    Extension rod
    Feature 2:
    Pairs with Roughness tester ISR-S400 and ISR-S500
    Feature 3:
    Optional Accessory
    $797.05
  • Insize ISR-S400-SB10R2 precision measuring tool

    Insize ISR-S400-SB10R2 – Small Roughness Probe

    Insize

    $2,525.10
    Insize ISR-S400-SB10R2 – Small Roug
    ISR-S400-SB10R2
    SKU:
    ISR-S400-SB10R2
    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-S400-SB10R2
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640324079
    Package Weight:
    0.35 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    Probe for use with ISR roughness tester
    Feature 2:
    Measure surfaces with small roughness
    $2,525.10
  • Insize ISR-S400-SB110 precision measuring tool

    Insize ISR-S400-SB110 – Cylinder/Hole Probe

    Insize

    $2,525.10
    Insize ISR-S400-SB110 – Cylinder/Ho
    ISR-S400-SB110
    SKU:
    ISR-S400-SB110
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.36 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-S400-SB110
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    B
    EAN:
    6928640324048
    Package Weight:
    0.36 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    Cylinder/hole probe
    Feature 2:
    measure cylinders and holes with radius > .197' R
    Feature 3:
    Pairs with Roughness Tester ISR-S400 and ISR-S500
    $2,525.10
  • Insize ISR-S400-SB120 precision measuring tool

    Insize ISR-S400-SB120 – Deep Groove Probe

    Insize

    $2,525.10
    Insize ISR-S400-SB120 – Deep Groove
    ISR-S400-SB120
    SKU:
    ISR-S400-SB120
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.36 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-S400-SB120
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640324055
    Package Weight:
    0.36 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    Deep groove probe
    Feature 2:
    meausre grooves with depth <.787'
    Feature 3:
    Pairs with Roughness Tester ISR-S400 and ISR-S500
    $2,525.10
  • Insize ISR-S400-SB140 precision measuring tool

    Insize ISR-S400-SB140 – Internal Angle Probe

    Insize

    $2,525.10
    Insize ISR-S400-SB140 – Internal An
    ISR-S400-SB140
    SKU:
    ISR-S400-SB140
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.36 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-S400-SB140
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    B
    EAN:
    6928640324062
    Package Weight:
    0.36 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    Internal angle probe
    Feature 2:
    measure internal angles
    Feature 3:
    Pairs with Roughness Tester ISR-S400 and ISR-S500
    $2,525.10
  • Insize ISR-S400-SB20 precision measuring tool

    Insize ISR-S400-SB20 – Groove Probe

    Insize

    $2,122.30
    Insize ISR-S400-SB20 – Groove Probe
    ISR-S400-SB20
    SKU:
    ISR-S400-SB20
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.37 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-S400-SB20
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640323980
    Package Weight:
    0.37 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    groove probe
    Feature 2:
    measure plane surfaces and grooves
    Feature 3:
    Pairs with Roughness Tester ISR-S400 and ISR-S500
    $2,122.30
  • Insize ISR-S400-SB30 precision measuring tool

    Insize ISR-S400-SB30 – Small Hole Probe

    Insize

    $2,122.30
    Insize ISR-S400-SB30 – Small Hole P
    ISR-S400-SB30
    SKU:
    ISR-S400-SB30
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.36 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-S400-SB30
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640323997
    Package Weight:
    0.36 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    Small hole probe
    Feature 2:
    measure plane surfaces and holes with diameter>.157' DIA and depth <.787'
    Feature 3:
    Pairs with Roughness Tester ISR-S400 and ISR-S500
    $2,122.30
  • Insize ISR-S400-SB40 precision measuring tool

    Insize ISR-S400-SB40 – Small Rod Probe

    Insize

    $2,104.25
    Insize ISR-S400-SB40 – Small Rod Pr
    ISR-S400-SB40
    SKU:
    ISR-S400-SB40
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.36 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-S400-SB40
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640324017
    Package Weight:
    0.36 lb
    Package Length:
    6.34 in
    Package Width:
    3.7 in
    Package Height:
    1.26 in
    Feature 1:
    Small rod probe
    Feature 2:
    measure small rods with diameter .039~.197' DIA
    Feature 3:
    Pairs with Roughness Tester ISR-S400 and ISR-S500
    $2,104.25