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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 4112-BD1006 precision measuring tool

    Insize 4112-BD1006 – Individual Steel Gage Block, Grade AS-1, .1006IN

    Insize

    $31.92
    Insize 4112-BD1006 – Individual Ste
    4112-BD1006
    SKU:
    4112-BD1006
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD1006
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640351709
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD1007 precision measuring tool

    Insize 4112-BD1007 – Individual Steel Gage Block, Grade AS-1, .1007IN

    Insize

    $31.92
    Insize 4112-BD1007 – Individual Ste
    4112-BD1007
    SKU:
    4112-BD1007
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD1007
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640351730
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD1008 precision measuring tool

    Insize 4112-BD1008 – Individual Steel Gage Block, Grade AS-1, .1008IN

    Insize

    $31.92
    Insize 4112-BD1008 – Individual Ste
    4112-BD1008
    SKU:
    4112-BD1008
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD1008
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640351761
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD1009 precision measuring tool

    Insize 4112-BD1009 – Individual Steel Gage Block, Grade AS-1, .1009IN

    Insize

    $31.92
    Insize 4112-BD1009 – Individual Ste
    4112-BD1009
    SKU:
    4112-BD1009
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD1009
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640351792
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD101 precision measuring tool

    Insize 4112-BD101 – Individual Steel Gage Block, Grade AS-1, .101IN

    Insize

    $31.92
    Insize 4112-BD101 – Individual Stee
    4112-BD101
    SKU:
    4112-BD101
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD101
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640351822
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD102 precision measuring tool

    Insize 4112-BD102 – Individual Steel Gage Block, Grade AS-1, .102IN

    Insize

    $31.92
    Insize 4112-BD102 – Individual Stee
    4112-BD102
    SKU:
    4112-BD102
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD102
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640351853
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD103 precision measuring tool

    Insize 4112-BD103 – Individual Steel Gage Block, Grade AS-1, .103IN

    Insize

    $31.92
    Insize 4112-BD103 – Individual Stee
    4112-BD103
    SKU:
    4112-BD103
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD103
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640351884
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD104 precision measuring tool

    Insize 4112-BD104 – Individual Steel Gage Block, Grade AS-1, .104IN

    Insize

    $31.92
    Insize 4112-BD104 – Individual Stee
    4112-BD104
    SKU:
    4112-BD104
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD104
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640351914
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD105 precision measuring tool

    Insize 4112-BD105 – Individual Steel Gage Block, Grade AS-1, .105IN

    Insize

    $31.92
    Insize 4112-BD105 – Individual Stee
    4112-BD105
    SKU:
    4112-BD105
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD105
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640351945
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD106 precision measuring tool

    Insize 4112-BD106 – Individual Steel Gage Block, Grade AS-1, .106IN

    Insize

    $31.92
    Insize 4112-BD106 – Individual Stee
    4112-BD106
    SKU:
    4112-BD106
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD106
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640351976
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD107 precision measuring tool

    Insize 4112-BD107 – Individual Steel Gage Block, Grade AS-1, .107IN

    Insize

    $31.92
    Insize 4112-BD107 – Individual Stee
    4112-BD107
    SKU:
    4112-BD107
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD107
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640352003
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD108 precision measuring tool

    Insize 4112-BD108 – Individual Steel Gage Block, Grade AS-1, .108IN

    Insize

    $31.92
    Insize 4112-BD108 – Individual Stee
    4112-BD108
    SKU:
    4112-BD108
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD108
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640352034
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD109 precision measuring tool

    Insize 4112-BD109 – Individual Steel Gage Block, Grade AS-1, .109IN

    Insize

    $31.92
    Insize 4112-BD109 – Individual Stee
    4112-BD109
    SKU:
    4112-BD109
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD109
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640352065
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD11 precision measuring tool

    Insize 4112-BD11 – Individual Steel Gage Block, Grade AS-1, .11IN

    Insize

    $31.92
    Insize 4112-BD11 – Individual Steel
    4112-BD11
    SKU:
    4112-BD11
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD11
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640352096
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD111 precision measuring tool

    Insize 4112-BD111 – Individual Steel Gage Block, Grade AS-1, .111IN

    Insize

    $31.92
    Insize 4112-BD111 – Individual Stee
    4112-BD111
    SKU:
    4112-BD111
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD111
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640352126
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD112 precision measuring tool

    Insize 4112-BD112 – Individual Steel Gage Block, Grade AS-1, .112IN

    Insize

    $31.92
    Insize 4112-BD112 – Individual Stee
    4112-BD112
    SKU:
    4112-BD112
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD112
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640352157
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD113 precision measuring tool

    Insize 4112-BD113 – Individual Steel Gage Block, Grade AS-1, .113IN

    Insize

    $31.92
    Insize 4112-BD113 – Individual Stee
    4112-BD113
    SKU:
    4112-BD113
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD113
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640352188
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD114 precision measuring tool

    Insize 4112-BD114 – Individual Steel Gage Block, Grade AS-1, .114IN

    Insize

    $31.92
    Insize 4112-BD114 – Individual Stee
    4112-BD114
    SKU:
    4112-BD114
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD114
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640352218
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD115 precision measuring tool

    Insize 4112-BD115 – Individual Steel Gage Block, Grade AS-1, .115IN

    Insize

    $31.92
    Insize 4112-BD115 – Individual Stee
    4112-BD115
    SKU:
    4112-BD115
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD115
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640352249
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92
  • Insize 4112-BD116 precision measuring tool

    Insize 4112-BD116 – Individual Steel Gage Block, Grade AS-1, .116IN

    Insize

    $31.92
    Insize 4112-BD116 – Individual Stee
    4112-BD116
    SKU:
    4112-BD116
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    4112-BD116
    Product Family:
    Gages and Reference Tools
    Supplier Category Code:
    A
    EAN:
    6928640352270
    Package Weight:
    0.04 lb
    Package Length:
    2.2 in
    Package Width:
    2.09 in
    Package Height:
    0.79 in
    Feature 1:
    Made of alloy steel.
    Feature 2:
    Meet ASME B89.1.9.
    Feature 3:
    Supplied with manufacturer inspection certificate.
    $31.92