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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 ISR-CSE321 precision measuring tool

    Insize ISR-CSE321 – Surface Roughness Specimen Set, End Milling, 8 Pcs Per Set

    Insize

    $359.96
    Insize ISR-CSE321 – Surface Roughne
    ISR-CSE321
    SKU:
    ISR-CSE321
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.52 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-CSE321
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640376627
    Package Weight:
    0.52 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Machining method end milling.
    Feature 2:
    Ra: 16, 32, 63, 125, 250, 500, 1000, 2000μin. Rz: 76.8, 153, 258, 488, 1011, 1992, 3704, 7620μin.
    Feature 3:
    For checking, identifying and specifying the roughness by symbol.
    Feature 4:
    Rust-proof, made of pure Nickel.
    $359.96
  • Insize ISR-CSE322 precision measuring tool

    Insize ISR-CSE322 – Surface Roughness Specimen Set, Reaming, 8 Pcs Per Set

    Insize

    $359.96
    Insize ISR-CSE322 – Surface Roughne
    ISR-CSE322
    SKU:
    ISR-CSE322
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.49 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-CSE322
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640376634
    Package Weight:
    0.49 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Machining method: reaming.
    Feature 2:
    Ra: 16, 32, 63, 125μin. Rz: 68, 128, 256, 512μin. Quantity 4pcs,
    Feature 3:
    For checking, identifying and specifying the roughness by symbol.
    Feature 4:
    Rust-proof, made of pure Nickel.
    $359.96
  • Insize ISR-CSE323 precision measuring tool

    Insize ISR-CSE323 – Surface Roughness Specimen Set, Horizontal Milling, 8 Pcs Per Set

    Insize

    $359.96
    Insize ISR-CSE323 – Surface Roughne
    ISR-CSE323
    SKU:
    ISR-CSE323
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.49 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-CSE323
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640376641
    Package Weight:
    0.49 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Machining method horizontal milling.
    Feature 2:
    Ra: 16, 32, 63, 125, 250, 500, 1000, 2000μin. Rz: 72, 147, 265, 512, 1025, 2120, 3900, 7880μin.
    Feature 3:
    For checking, identifying and specifying the roughness by symbol.
    Feature 4:
    Rust-proof, made of pure Nickel.
    $359.96
  • Insize ISR-CSE325 precision measuring tool

    Insize ISR-CSE325 – Surface Roughness Specimen Set, Shaping (Planing), 8 Pcs Per Set

    Insize

    $359.96
    Insize ISR-CSE325 – Surface Roughne
    ISR-CSE325
    SKU:
    ISR-CSE325
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.49 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-CSE325
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640376658
    Package Weight:
    0.49 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Machining method shaping (planing).
    Feature 2:
    Ra: 32, 63, 125, 250, 500, 1000, 2000, 4000μin. Rz: 154, 268, 488, 1009, 1950, 3998, 7603, 14440μin. Quantity 8pcs.
    Feature 3:
    For checking, identifying and specifying the roughness by symbol.
    Feature 4:
    Rust-proof, made of pure Nickel.
    $359.96
  • Insize ISR-CSE326 precision measuring tool

    Insize ISR-CSE326 – Surface Roughness Specimen Set, Linishing (Belt Sanding), 6 Pcs Per Set

    Insize

    $359.96
    Insize ISR-CSE326 – Surface Roughne
    ISR-CSE326
    SKU:
    ISR-CSE326
    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-CSE326
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640376665
    Package Weight:
    0.5 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Machining method linishing (belt sanding).
    Feature 2:
    Ra: 4, 8, 16, 32, 63, 125μin. Rz: 36, 62, 135, 297, 740, 1240μin. Quantity 6pcs.
    Feature 3:
    For checking, identifying and specifying the roughness by symbol.
    Feature 4:
    Rust-proof, made of pure Nickel.
    $359.96
  • Insize ISR-CSE328 precision measuring tool

    Insize ISR-CSE328 – Surface Roughness Specimen Set, Vertical Grinding, 6 Pcs Per Set

    Insize

    $359.96
    Insize ISR-CSE328 – Surface Roughne
    ISR-CSE328
    SKU:
    ISR-CSE328
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.49 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-CSE328
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640376672
    Package Weight:
    0.49 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Machining method vertical grinding.
    Feature 2:
    Ra: 8, 16, 32, 63, 125, 250μin. Rz: 44, 140, 246, 351, 888, 1632μin. Quantity 6pcs.
    Feature 3:
    For checking, identifying and specifying the roughness by symbol.
    Feature 4:
    Rust-proof, made of pure Nickel.
    $359.96
  • Insize ISR-CSE329 precision measuring tool

    Insize ISR-CSE329 – Surface Roughness Specimen Set, Grit and Shot Blasting, 8 Pcs Per Set

    Insize

    $359.96
    Insize ISR-CSE329 – Surface Roughne
    ISR-CSE329
    SKU:
    ISR-CSE329
    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-CSE329
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640376689
    Package Weight:
    0.5 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Machining method: grit blasting.
    Feature 2:
    Ra: 128, 420, 720, 1000μin. Rz: 768, 2520, 4320, 6000μin. Quantity 4pcs, shot blasting.
    Feature 3:
    For checking, identifying and specifying the roughness by symbol.
    Feature 4:
    Rust-proof, made of pure Nickel.
    $359.96
  • Insize ISR-CSE331 precision measuring tool

    Insize ISR-CSE331 – Surface Roughness Specimen Set, Spark Erosion (EDM), 8 Pcs Per Set

    Insize

    $359.96
    Insize ISR-CSE331 – Surface Roughne
    ISR-CSE331
    SKU:
    ISR-CSE331
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.49 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-CSE331
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640376696
    Package Weight:
    0.49 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Machining method spark erosion (EDM).
    Feature 2:
    Ra: 16, 32, 63, 125, 250, 500, 1000, 2000μin. Rz: 100, 180, 288, 568, 988, 2048, 4200, 7840μin.
    Feature 3:
    For checking, identifying and specifying the roughness by symbol.
    Feature 4:
    Rust-proof, made of pure Nickel.
    $359.96
  • Insize ISR-CSE333 precision measuring tool

    Insize ISR-CSE333 – Surface Roughness Specimen Set, Hand Filing, 5 Pcs Per Set

    Insize

    $359.96
    Insize ISR-CSE333 – Surface Roughne
    ISR-CSE333
    SKU:
    ISR-CSE333
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.48 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-CSE333
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640376702
    Package Weight:
    0.48 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Machining method hand filing.
    Feature 2:
    Ra: 16, 32, 63, 125, 250μin. Rz: 120, 224, 496, 900, 2440μin. Quantity 5pcs.
    Feature 3:
    For checking, identifying and specifying the roughness by symbol.
    Feature 4:
    Rust-proof, made of pure Nickel.
    $359.96
  • Insize ISR-CSE334 precision measuring tool

    Insize ISR-CSE334 – Surface Roughness Specimen Set, Castings, 7 Pcs Per Set

    Insize

    $359.96
    Insize ISR-CSE334 – Surface Roughne
    ISR-CSE334
    SKU:
    ISR-CSE334
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.48 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-CSE334
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640376719
    Package Weight:
    0.48 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Machining method castings.
    Feature 2:
    Ra: 32, 63, 125, 250, 500, 1000, 2000μin. Rz: 128, 320, 640, 1280, 2240, 4480, 9000μin.
    Feature 3:
    For checking, identifying and specifying the roughness by symbol.
    Feature 4:
    Rust-proof, made of pure Nickel.
    $359.96
  • Insize ISR-CSE335 precision measuring tool

    Insize ISR-CSE335 – Surface Roughness Specimen Set, Honing, 6 Pcs Per Set

    Insize

    $359.96
    Insize ISR-CSE335 – Surface Roughne
    ISR-CSE335
    SKU:
    ISR-CSE335
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.49 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-CSE335
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640376726
    Package Weight:
    0.49 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Machining method honing.
    Feature 2:
    Ra: 2, 4, 8, 16, 32, 63μin. Rz: 12, 22, 40, 80, 168, 360μin.
    Feature 3:
    For checking, identifying and specifying the roughness by symbol.
    Feature 4:
    Rust-proof, made of pure Nickel.
    $359.96
  • Insize ISR-CSE336 precision measuring tool

    Insize ISR-CSE336 – Surface Roughness Specimen Set, Polishing, 5 Pcs Per Set

    Insize

    $359.96
    Insize ISR-CSE336 – Surface Roughne
    ISR-CSE336
    SKU:
    ISR-CSE336
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.49 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-CSE336
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640376733
    Package Weight:
    0.49 lb
    Package Length:
    6.1 in
    Package Width:
    3.82 in
    Package Height:
    1.65 in
    Feature 1:
    Machining method polishing.
    Feature 2:
    Ra: .5, 1, 2, 4, 8μin. Rz: 12, 14, 27, 29, 61μin.
    Feature 3:
    For checking, identifying and specifying the roughness by symbol.
    Feature 4:
    Rust-proof, made of pure Nickel.
    $359.96
  • Insize ISR-LS601E precision measuring tool

    Insize ISR-LS601E – Surface Roughness Reference Specimen (Glass), 3.9μin

    Insize

    $300.20
    Insize ISR-LS601E – Surface Roughne
    ISR-LS601E
    SKU:
    ISR-LS601E
    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:
    ISR-LS601E
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561934786
    Package Weight:
    0.13 lb
    Package Length:
    1.57 in
    Package Width:
    1.18 in
    Package Height:
    0.31 in
    Feature 1:
    Deviation -20%-+10%
    Feature 2:
    Uniformity 3%
    Feature 3:
    To calibrate roughness tester
    Feature 4:
    Made of glass
    $300.20
  • Insize ISR-LS602E precision measuring tool

    Insize ISR-LS602E – Surface Roughness Reference Specimen (Glass), 7.9μin

    Insize

    $300.20
    Insize ISR-LS602E – Surface Roughne
    ISR-LS602E
    SKU:
    ISR-LS602E
    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:
    ISR-LS602E
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561934793
    Package Weight:
    0.13 lb
    Package Length:
    1.57 in
    Package Width:
    1.18 in
    Package Height:
    0.31 in
    Feature 1:
    Deviation ±10%
    Feature 2:
    Uniformity 3%
    Feature 3:
    To calibrate roughness tester
    Feature 4:
    Made of glass
    $300.20
  • Insize ISR-LS603E precision measuring tool

    Insize ISR-LS603E – Surface Roughness Reference Specimen (Glass), 15.7μin

    Insize

    $300.20
    Insize ISR-LS603E – Surface Roughne
    ISR-LS603E
    SKU:
    ISR-LS603E
    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:
    ISR-LS603E
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561934809
    Package Weight:
    0.13 lb
    Package Length:
    1.57 in
    Package Width:
    1.18 in
    Package Height:
    0.31 in
    Feature 1:
    Deviation ±10%
    Feature 2:
    Uniformity 3%
    Feature 3:
    To calibrate roughness tester
    Feature 4:
    Made of glass
    $300.20
  • Insize ISR-LS604E precision measuring tool

    Insize ISR-LS604E – Surface Roughness Reference Specimen (Glass), 31.5μin

    Insize

    $300.20
    Insize ISR-LS604E – Surface Roughne
    ISR-LS604E
    SKU:
    ISR-LS604E
    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:
    ISR-LS604E
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561934816
    Package Weight:
    0.13 lb
    Package Length:
    1.57 in
    Package Width:
    1.18 in
    Package Height:
    0.31 in
    Feature 1:
    Deviation ±10%
    Feature 2:
    Uniformity 3%
    Feature 3:
    To calibrate roughness tester
    Feature 4:
    Made of glass
    $300.20
  • Insize ISR-LS605E precision measuring tool

    Insize ISR-LS605E – Surface Roughness Reference Specimen (Glass), 63.0μin

    Insize

    $300.20
    Insize ISR-LS605E – Surface Roughne
    ISR-LS605E
    SKU:
    ISR-LS605E
    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:
    ISR-LS605E
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561934823
    Package Weight:
    0.13 lb
    Package Length:
    1.57 in
    Package Width:
    1.18 in
    Package Height:
    0.31 in
    Feature 1:
    Deviation ±10%
    Feature 2:
    Uniformity 3%
    Feature 3:
    To calibrate roughness tester
    Feature 4:
    Made of glass
    $300.20
  • Insize ISR-LS606E precision measuring tool

    Insize ISR-LS606E – Surface Roughness Reference Specimen (Glass), 126.0μin

    Insize

    $300.20
    Insize ISR-LS606E – Surface Roughne
    ISR-LS606E
    SKU:
    ISR-LS606E
    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:
    ISR-LS606E
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561934830
    Package Weight:
    0.13 lb
    Package Length:
    1.57 in
    Package Width:
    1.18 in
    Package Height:
    0.31 in
    Feature 1:
    Deviation ±10%
    Feature 2:
    Uniformity 2%
    Feature 3:
    To calibrate roughness tester
    Feature 4:
    Made of glass
    $300.20
  • Insize ISR-LS607E precision measuring tool

    Insize ISR-LS607E – Surface Roughness Reference Specimen (Glass), 252.0μin

    Insize

    $513.00
    Insize ISR-LS607E – Surface Roughne
    ISR-LS607E
    SKU:
    ISR-LS607E
    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:
    ISR-LS607E
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561934847
    Package Weight:
    0.13 lb
    Package Length:
    1.57 in
    Package Width:
    1.18 in
    Package Height:
    0.31 in
    Feature 1:
    Deviation ±10%
    Feature 2:
    Uniformity 2%
    Feature 3:
    To calibrate roughness tester
    Feature 4:
    Made of glass
    $513.00
  • Insize ISR-RS525X precision measuring tool

    Insize ISR-RS525X – Surface Roughness Reference Specimen, 250μin/6.25μm

    Insize

    $1,318.27
    Insize ISR-RS525X – Surface Roughne
    ISR-RS525X
    SKU:
    ISR-RS525X
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.40 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    ISR-RS525X
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640324574
    Package Weight:
    0.4 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.
    $1,318.27