GLOBAL SOLUTIONS: We ship internationally and work with companies worldwide.

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 2427-1D75 precision measuring tool

    Insize 2427-1D75 – Split Type Dial Bore Gage for Blind Holes, .059-.075IN

    Insize

    $531.00
    Insize 2427-1D75 – Split Type Dial
    2427-1D75
    SKU:
    2427-1D75
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-1D75
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351150
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $531.00
  • Insize 2427-2 precision measuring tool

    Insize 2427-2 – Split Type Dial Bore Gage for Blind Holes, .071-.087IN

    Insize

    $531.00
    Insize 2427-2 – Split Type Dial Bor
    2427-2
    SKU:
    2427-2
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-2
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351167
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $531.00
  • Insize 2427-20 precision measuring tool

    Insize 2427-20 – Split Type Dial Bore Gage for Blind Holes, .764-.811IN

    Insize

    $466.56
    Insize 2427-20 – Split Type Dial Bo
    2427-20
    SKU:
    2427-20
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-20
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351457
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $466.56
  • Insize 2427-2D25 precision measuring tool

    Insize 2427-2D25 – Split Type Dial Bore Gage for Blind Holes, .081 -.096IN

    Insize

    $531.00
    Insize 2427-2D25 – Split Type Dial
    2427-2D25
    SKU:
    2427-2D25
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-2D25
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351174
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $531.00
  • Insize 2427-2D5 precision measuring tool

    Insize 2427-2D5 – Split Type Dial Bore Gage for Blind Holes, .091-.106IN

    Insize

    $531.00
    Insize 2427-2D5 – Split Type Dial B
    2427-2D5
    SKU:
    2427-2D5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-2D5
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351181
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $531.00
  • Insize 2427-2D75 precision measuring tool

    Insize 2427-2D75 – Split Type Dial Bore Gage for Blind Holes, .100-.116IN

    Insize

    $531.00
    Insize 2427-2D75 – Split Type Dial
    2427-2D75
    SKU:
    2427-2D75
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-2D75
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351198
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $531.00
  • Insize 2427-3 precision measuring tool

    Insize 2427-3 – Split Type Dial Bore Gage for Blind Holes, .110-.126IN

    Insize

    $531.00
    Insize 2427-3 – Split Type Dial Bor
    2427-3
    SKU:
    2427-3
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-3
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351204
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $531.00
  • Insize 2427-3D25 precision measuring tool

    Insize 2427-3D25 – Split Type Dial Bore Gage for Blind Holes, .120-.136IN

    Insize

    $531.00
    Insize 2427-3D25 – Split Type Dial
    2427-3D25
    SKU:
    2427-3D25
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-3D25
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351211
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $531.00
  • Insize 2427-3D5 precision measuring tool

    Insize 2427-3D5 – Split Type Dial Bore Gage for Blind Holes, .130-.146IN

    Insize

    $531.00
    Insize 2427-3D5 – Split Type Dial B
    2427-3D5
    SKU:
    2427-3D5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-3D5
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351228
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $531.00
  • Insize 2427-3D75 precision measuring tool

    Insize 2427-3D75 – Split Type Dial Bore Gage for Blind Holes, .140-.156IN

    Insize

    $531.00
    Insize 2427-3D75 – Split Type Dial
    2427-3D75
    SKU:
    2427-3D75
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-3D75
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351235
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $531.00
  • Insize 2427-4 precision measuring tool

    Insize 2427-4 – Split Type Dial Bore Gage for Blind Holes, .150-.165IN

    Insize

    $535.47
    Insize 2427-4 – Split Type Dial Bor
    2427-4
    SKU:
    2427-4
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-4
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351242
    Package Weight:
    0.03 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $535.47
  • Insize 2427-4D5 precision measuring tool

    Insize 2427-4D5 – Split Type Dial Bore Gage for Blind Holes, .163-.189IN

    Insize

    $447.71
    Insize 2427-4D5 – Split Type Dial B
    2427-4D5
    SKU:
    2427-4D5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-4D5
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351259
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $447.71
  • Insize 2427-5 precision measuring tool

    Insize 2427-5 – Split Type Dial Bore Gage for Blind Holes, .185-.209IN

    Insize

    $447.71
    Insize 2427-5 – Split Type Dial Bor
    2427-5
    SKU:
    2427-5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-5
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351266
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $447.71
  • Insize 2427-5D5 precision measuring tool

    Insize 2427-5D5 – Split Type Dial Bore Gage for Blind Holes, .205-.228IN

    Insize

    $447.71
    Insize 2427-5D5 – Split Type Dial B
    2427-5D5
    SKU:
    2427-5D5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-5D5
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351273
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $447.71
  • Insize 2427-6 precision measuring tool

    Insize 2427-6 – Split Type Dial Bore Gage for Blind Holes, .224-.248IN

    Insize

    $447.71
    Insize 2427-6 – Split Type Dial Bor
    2427-6
    SKU:
    2427-6
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-6
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351280
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $447.71
  • Insize 2427-6D5 precision measuring tool

    Insize 2427-6D5 – Split Type Dial Bore Gage for Blind Holes, .244-.268IN

    Insize

    $447.71
    Insize 2427-6D5 – Split Type Dial B
    2427-6D5
    SKU:
    2427-6D5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-6D5
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351297
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $447.71
  • Insize 2427-7 precision measuring tool

    Insize 2427-7 – Split Type Dial Bore Gage for Blind Holes, .264-.287IN

    Insize

    $447.71
    Insize 2427-7 – Split Type Dial Bor
    2427-7
    SKU:
    2427-7
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-7
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351303
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $447.71
  • Insize 2427-7D5 precision measuring tool

    Insize 2427-7D5 – Split Type Dial Bore Gage for Blind Holes, .283-.307IN

    Insize

    $447.71
    Insize 2427-7D5 – Split Type Dial B
    2427-7D5
    SKU:
    2427-7D5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-7D5
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351310
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $447.71
  • Insize 2427-8 precision measuring tool

    Insize 2427-8 – Split Type Dial Bore Gage for Blind Holes, .303-.327IN

    Insize

    $447.71
    Insize 2427-8 – Split Type Dial Bor
    2427-8
    SKU:
    2427-8
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-8
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351327
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $447.71
  • Insize 2427-8D5 precision measuring tool

    Insize 2427-8D5 – Split Type Dial Bore Gage for Blind Holes, .323-.346IN

    Insize

    $447.71
    Insize 2427-8D5 – Split Type Dial B
    2427-8D5
    SKU:
    2427-8D5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.05 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    2427-8D5
    Product Family:
    Bore and Inside Measurement
    Supplier Category Code:
    A
    EAN:
    6928640351334
    Package Weight:
    0.05 lb
    Package Length:
    3.35 in
    Package Width:
    0.94 in
    Package Height:
    0.94 in
    Feature 1:
    Split type contact points
    Feature 2:
    Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
    Feature 3:
    Repeatability (without indicator): 1um
    Feature 4:
    Optional accessory: electronic/dial indicators or dial comparator
    $447.71