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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 IST-04TT68 precision measuring tool

    Insize IST-04TT68 – Digital Torque Tester, 60.2-602 in.lb, 5.01-50.1 ft.lb

    Insize

    $1,767.00
    Insize IST-04TT68 – Digital Torque
    IST-04TT68
    SKU:
    IST-04TT68
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.53 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-04TT68
    Product Family:
    Indicators and Test Indicators
    Supplier Category Code:
    B
    EAN:
    6940561972870
    Package Weight:
    3.53 lb
    Package Length:
    16.1 in
    Package Width:
    12.64 in
    Package Height:
    12.4 in
    Feature 1:
    Test torque wrenches, torque screwdrivers and other torque tools
    Feature 2:
    Clockwise operation
    Feature 3:
    Peak, track and first peak working modes
    Feature 4:
    Tolerance testing
    Feature 5:
    LED indicator for the target torque alarm
    Feature 6:
    Power off automatically in 2 minutes without any operations
    $1,767.00
  • Insize IST-04TT815 precision measuring tool

    Insize IST-04TT815 – Digital Torque Tester, 60.1-601 ft.lb

    Insize

    $2,013.05
    Insize IST-04TT815 – Digital Torque
    IST-04TT815
    SKU:
    IST-04TT815
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    12.13 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-04TT815
    Product Family:
    Indicators and Test Indicators
    Supplier Category Code:
    B
    EAN:
    6940561972894
    Package Weight:
    12.13 lb
    Package Length:
    16.1 in
    Package Width:
    12.64 in
    Package Height:
    12.4 in
    Feature 1:
    Test torque wrenches, torque screwdrivers and other torque tools
    Feature 2:
    Clockwise operation
    Feature 3:
    Peak, track and first peak working modes
    Feature 4:
    Tolerance testing
    Feature 5:
    LED indicator for the target torque alarm
    Feature 6:
    Power off automatically in 2 minutes without any operations
    $2,013.05
  • Insize IST-10WM100 precision measuring tool

    Insize IST-10WM100 – Torque Wrench, 20-100lb.ft

    Insize

    $263.15
    Insize IST-10WM100 – Torque Wrench,
    IST-10WM100
    SKU:
    IST-10WM100
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.55 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-10WM100
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640397974
    Package Weight:
    3.55 lb
    Package Length:
    19.09 in
    Package Width:
    2.56 in
    Package Height:
    2.56 in
    Feature 1:
    Accuracy ±4%. Graduation 0.5lb.in.
    Feature 2:
    Square driver 3/8”.
    Feature 3:
    According to DIN ISO 6789, ASME B107.300.
    Feature 4:
    All-metal construction.
    $263.15
  • Insize IST-10WM1000 precision measuring tool

    Insize IST-10WM1000 – Torque Wrench, 200-1000lb.ft

    Insize

    $2,269.55
    Insize IST-10WM1000 – Torque Wrench
    IST-10WM1000
    SKU:
    IST-10WM1000
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    27.78 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-10WM1000
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561903379
    Package Weight:
    27.78 lb
    Package Length:
    53.54 in
    Package Width:
    6.5 in
    Package Height:
    4.92 in
    Feature 1:
    Accuracy ±4%. Graduation 5lb.in.
    Feature 2:
    Square driver 1”.
    Feature 3:
    According to DIN ISO 6789, ASME B107.300.
    Feature 4:
    All-metal construction.
    $2,269.55
  • Insize IST-10WM150 precision measuring tool

    Insize IST-10WM150 – Torque Wrench, 30-150lb.ft

    Insize

    $283.10
    Insize IST-10WM150 – Torque Wrench,
    IST-10WM150
    SKU:
    IST-10WM150
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    4.20 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-10WM150
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640397981
    Package Weight:
    4.2 lb
    Package Length:
    24.02 in
    Package Width:
    2.56 in
    Package Height:
    2.56 in
    Feature 1:
    Accuracy ±4%. Graduation 1lb.in.
    Feature 2:
    Square driver 1/2”.
    Feature 3:
    According to DIN ISO 6789, ASME B107.300.
    Feature 4:
    All-metal construction.
    $283.10
  • Insize IST-10WM200 precision measuring tool

    Insize IST-10WM200 – Torque Wrench, 40-200lb.in

    Insize

    $239.40
    Insize IST-10WM200 – Torque Wrench,
    IST-10WM200
    SKU:
    IST-10WM200
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.70 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-10WM200
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640397998
    Package Weight:
    2.7 lb
    Package Length:
    16.34 in
    Package Width:
    2.56 in
    Package Height:
    2.56 in
    Feature 1:
    Accuracy ±6%(<89lb.in),±4%(≥89lb.in). Graduation 1lb.in.
    Feature 2:
    Square driver 1/4”.
    Feature 3:
    According to DIN ISO 6789, ASME B107.300.
    Feature 4:
    All-metal construction.
    $239.40
  • Insize IST-10WM2000 precision measuring tool

    Insize IST-10WM2000 – Torque Wrench, 400-2000lb.ft

    Insize

    $2,944.05
    Insize IST-10WM2000 – Torque Wrench
    IST-10WM2000
    SKU:
    IST-10WM2000
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    30.64 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-10WM2000
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561903386
    Package Weight:
    30.64 lb
    Package Length:
    53.54 in
    Package Width:
    6.5 in
    Package Height:
    4.92 in
    Feature 1:
    Accuracy ±4%. Graduation 10lb.in.
    Feature 2:
    Square driver 1”.
    Feature 3:
    According to DIN ISO 6789, ASME B107.300.
    Feature 4:
    All-metal construction.
    $2,944.05
  • Insize IST-10WM250 precision measuring tool

    Insize IST-10WM250 – Torque Wrench, 50-250lb.in

    Insize

    $242.25
    Insize IST-10WM250 – Torque Wrench,
    IST-10WM250
    SKU:
    IST-10WM250
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.04 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-10WM250
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640398001
    Package Weight:
    3.04 lb
    Package Length:
    16.34 in
    Package Width:
    2.56 in
    Package Height:
    2.56 in
    Feature 1:
    Accuracy ±6%(<89lb.in),±4%(≥89lb.in). Graduation 1lb.in.
    Feature 2:
    Square driver 3/8”.
    Feature 3:
    According to DIN ISO 6789, ASME B107.300.
    Feature 4:
    All-metal construction.
    $242.25
  • Insize IST-10WM250A precision measuring tool

    Insize IST-10WM250A – Torque Wrench, 50-250lb.ft

    Insize

    $304.00
    Insize IST-10WM250A – Torque Wrench
    IST-10WM250A
    SKU:
    IST-10WM250A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    4.36 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-10WM250A
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640398018
    Package Weight:
    4.36 lb
    Package Length:
    24.02 in
    Package Width:
    2.56 in
    Package Height:
    2.56 in
    Feature 1:
    Accuracy ±4%. Graduation 1lb.in.
    Feature 2:
    Square driver 1/2”.
    Feature 3:
    According to DIN ISO 6789, ASME B107.300.
    Feature 4:
    All-metal construction.
    $304.00
  • Insize IST-10WM400 precision measuring tool

    Insize IST-10WM400 – Torque Wrench, 80-400lb. Ft

    Insize

    $1,361.35
    Insize IST-10WM400 – Torque Wrench,
    IST-10WM400
    SKU:
    IST-10WM400
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    13.23 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-10WM400
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6974029779916
    Package Weight:
    13.23 lb
    Package Length:
    33.66 in
    Package Width:
    1.18 in
    Package Height:
    1.18 in
    Feature 1:
    Accuracy ±4%. Graduation 2lb.in.
    Feature 2:
    Square driver 3/4”.
    Feature 3:
    According to DIN ISO 6789, ASME B107.300.
    Feature 4:
    All-metal construction.
    $1,361.35
  • Insize IST-10WM600 precision measuring tool

    Insize IST-10WM600 – Torque Wrench, 100-600lb.ft

    Insize

    $1,524.75
    Insize IST-10WM600 – Torque Wrench,
    IST-10WM600
    SKU:
    IST-10WM600
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    21.03 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-10WM600
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6928640398025
    Package Weight:
    21.03 lb
    Package Length:
    51.57 in
    Package Width:
    5.71 in
    Package Height:
    4.33 in
    Feature 1:
    Accuracy ±4%. Graduation 2.5lb.in.
    Feature 2:
    Square driver 3/4”.
    Feature 3:
    According to DIN ISO 6789, ASME B107.300.
    Feature 4:
    All-metal construction.
    $1,524.75
  • Insize IST-11WM-R1 precision measuring tool

    Insize IST-11WM-R1 – Ratchet Head, 1/4IN

    Insize

    $99.75
    Insize IST-11WM-R1 – Ratchet Head,
    IST-11WM-R1
    SKU:
    IST-11WM-R1
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.44 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-11WM-R1
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    B
    EAN:
    6940561935394
    Package Weight:
    0.44 lb
    Package Length:
    3.15 in
    Package Width:
    3.15 in
    Package Height:
    1.97 in
    $99.75
  • Insize IST-12W135A precision measuring tool

    Insize IST-12W135A – Bluetooth Digital Torque Wrench, 239-1195 in.lb

    Insize

    $2,481.40
    Insize IST-12W135A – Bluetooth Digi
    IST-12W135A
    SKU:
    IST-12W135A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.49 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-12W135A
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561936452
    Package Weight:
    3.49 lb
    Package Length:
    18.5 in
    Package Width:
    4.92 in
    Package Height:
    2.2 in
    Feature 1:
    Resolution 0.01N.m
    Feature 2:
    Square driver 3/8'
    $2,481.40
  • Insize IST-12W200A precision measuring tool

    Insize IST-12W200A – Bluetooth Digital Torque Wrench, 354-1770 in.lb

    Insize

    $2,496.60
    Insize IST-12W200A – Bluetooth Digi
    IST-12W200A
    SKU:
    IST-12W200A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    4.85 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-12W200A
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561936469
    Package Weight:
    4.85 lb
    Package Length:
    27.56 in
    Package Width:
    5.91 in
    Package Height:
    2.56 in
    Feature 1:
    Resolution 0.01N.m
    Feature 2:
    Square driver 1/2'
    $2,496.60
  • Insize IST-12W30A precision measuring tool

    Insize IST-12W30A – Bluetooth Digital Torque Wrench, 53.1-265.5 in.lb

    Insize

    $2,478.55
    Insize IST-12W30A – Bluetooth Digit
    IST-12W30A
    SKU:
    IST-12W30A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.08 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-12W30A
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561936445
    Package Weight:
    3.08 lb
    Package Length:
    18.9 in
    Package Width:
    5.12 in
    Package Height:
    2.17 in
    Feature 1:
    Resolution 0.01N.m
    Feature 2:
    Square driver 1/4'
    $2,478.55
  • Insize IST-12W340A precision measuring tool

    Insize IST-12W340A – Bluetooth Digital Torque Wrench, 602-3009 in.lb

    Insize

    $2,503.25
    Insize IST-12W340A – Bluetooth Digi
    IST-12W340A
    SKU:
    IST-12W340A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    5.51 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-12W340A
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561936476
    Package Weight:
    5.51 lb
    Package Length:
    27.56 in
    Package Width:
    4.72 in
    Package Height:
    2.56 in
    Feature 1:
    Resolution 0.01N.m
    Feature 2:
    Square driver 1/2'
    $2,503.25
  • Insize IST-15W06A precision measuring tool

    Insize IST-15W06A – Bluetooth Digital Torque Wrench (Keyboard Signal), 10.6-53.09 in.lb/0.88-4.424 ft.lb

    Insize

    $3,137.85
    Insize IST-15W06A – Bluetooth Digit
    IST-15W06A
    SKU:
    IST-15W06A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.20 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-15W06A
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561962208
    Package Weight:
    2.2 lb
    Package Length:
    12.2 in
    Package Width:
    4.72 in
    Package Height:
    2.36 in
    Feature 1:
    Resolution 0.01in.lb/0.001ft.lb
    Feature 2:
    Accuracy: clockwise ±2%, counter-clockwise ±3%
    Feature 3:
    Tolerance setting range -20%~+20% (target torque value)
    Feature 4:
    Square drive 1/4'
    Feature 5:
    Unit in.lb, ft.lb, N.m, kg.cm
    Feature 6:
    Clockwise and counter-clockwise operation
    Feature 7:
    Peak and track working mode
    $3,137.85
  • Insize IST-15W12A precision measuring tool

    Insize IST-15W12A – Bluetooth Digital Torque Wrench (Keyboard Signal), 21.2-106.2 in.lb/1.77-8.85 ft.lb

    Insize

    $3,137.85
    Insize IST-15W12A – Bluetooth Digit
    IST-15W12A
    SKU:
    IST-15W12A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.20 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-15W12A
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561962215
    Package Weight:
    2.2 lb
    Package Length:
    12.2 in
    Package Width:
    4.72 in
    Package Height:
    2.36 in
    Feature 1:
    Resolution 0.1in.lb/0.01ft.lb
    Feature 2:
    Accuracy: clockwise ±2%, counter-clockwise ±3%
    Feature 3:
    Tolerance setting range -20%~+20% (target torque value)
    Feature 4:
    Square drive 1/4'
    Feature 5:
    Unit in.lb, ft.lb, N.m, kg.cm
    Feature 6:
    Clockwise and counter-clockwise operation
    Feature 7:
    Peak and track working mode
    $3,137.85
  • Insize IST-15W135A precision measuring tool

    Insize IST-15W135A – Bluetooth Digital Torque Wrench (Keyboard Signal), 239-1195 in.lb, 19.9-99.95 ft.lb

    Insize

    $2,909.85
    Insize IST-15W135A – Bluetooth Digi
    IST-15W135A
    SKU:
    IST-15W135A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.97 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-15W135A
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561964387
    Package Weight:
    3.97 lb
    Package Length:
    19.69 in
    Package Width:
    5.51 in
    Package Height:
    3.15 in
    Feature 1:
    Resolution 1in.lb/0.1ft.lb
    Feature 2:
    Accuracy: clockwise ±2%, counter-clockwise ±3%
    Feature 3:
    Tolerance setting range -20%~+20% (target torque value)
    Feature 4:
    Square drive 3/8'
    Feature 5:
    Unit in.lb, ft.lb, N.m, kg.cm
    Feature 6:
    Clockwise and counter-clockwise operation
    Feature 7:
    Peak and track working mode
    $2,909.85
  • Insize IST-15W200A precision measuring tool

    Insize IST-15W200A – Bluetooth Digital Torque Wrench (Keyboard Signal), 354-1770 in.lb, 29.5-147.5 ft.lb

    Insize

    $2,919.35
    Insize IST-15W200A – Bluetooth Digi
    IST-15W200A
    SKU:
    IST-15W200A
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    4.85 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    IST-15W200A
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    B
    EAN:
    6940561964394
    Package Weight:
    4.85 lb
    Package Length:
    23.62 in
    Package Width:
    5.51 in
    Package Height:
    3.15 in
    Feature 1:
    Resolution 1in.lb/0.1ft.lb
    Feature 2:
    Accuracy: clockwise ±2%, counter-clockwise ±3%
    Feature 3:
    Tolerance setting range -20%~+20% (target torque value)
    Feature 4:
    Square drive 1/2'
    Feature 5:
    Unit in.lb, ft.lb, N.m, kg.cm
    Feature 6:
    Clockwise and counter-clockwise operation
    Feature 7:
    Peak and track working mode
    $2,919.35