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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 6521-80 precision measuring tool

    Insize 6521-80 – Precision Universal Vise, 2.756IN

    Insize

    $4,160.05
    Insize 6521-80 – Precision Universa
    6521-80
    SKU:
    6521-80
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    31.24 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6521-80
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640320941
    Package Weight:
    31.24 lb
    Package Length:
    11.42 in
    Package Width:
    10.83 in
    Package Height:
    8.27 in
    Feature 1:
    Horizontal rotary: range 360°, grad0.05°.
    Feature 2:
    Vertical incline: range 45°, grad 0.05°.
    Feature 3:
    With vertical incline adjust knob.
    Feature 4:
    Parallelism and squareness between A, B, C and D: 50μin/per inch, parallelism between D and E at 0°: 100μin/per inch.
    Feature 5:
    Made of tool steel.
    Feature 6:
    Hardness HRC56-58.
    $4,160.05
  • Insize 6526-100 precision measuring tool

    Insize 6526-100 – Precision Vise, 2.874IN

    Insize

    $418.00
    Insize 6526-100 – Precision Vise, 2
    6526-100
    SKU:
    6526-100
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    10.22 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6526-100
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640321047
    Package Weight:
    10.22 lb
    Package Length:
    11.02 in
    Package Width:
    5.91 in
    Package Height:
    4.72 in
    Feature 1:
    Parallelism:30μin/per inch.
    Feature 2:
    Squareness: 50μin/per inch.
    Feature 3:
    Made of alloy steel
    Feature 4:
    Hardness HRC56-58
    $418.00
  • Insize 6527-5 precision measuring tool

    Insize 6527-5 – Sine Table, 6x6IN

    Insize

    $2,043.45
    Insize 6527-5 – Sine Table, 6x6IN
    6527-5
    SKU:
    6527-5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    21.61 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6527-5
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640347832
    Package Weight:
    21.61 lb
    Package Length:
    11.02 in
    Package Width:
    8.27 in
    Package Height:
    11.02 in
    Feature 1:
    Accuracy of angle ±15 seconds
    Feature 2:
    Made of alloy tool steel
    Feature 3:
    Hardness HRC58~60
    $2,043.45
  • Insize 6528-85 precision measuring tool

    Insize 6528-85 – Precision Universal Vise with Chuck

    Insize

    $5,590.68
    Insize 6528-85 – Precision Universa
    6528-85
    SKU:
    6528-85
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    24.25 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6528-85
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6940561905342
    Package Weight:
    24.25 lb
    Package Length:
    12.99 in
    Package Width:
    8.66 in
    Package Height:
    8.27 in
    Feature 1:
    Horizontal rotary: range 360°, grad 0.05°.
    Feature 2:
    Vertical incline: range 45°, graduation 0.05°
    Feature 3:
    With vertical incline adjust knob.
    Feature 4:
    Runout of chuck is less than .0003'(test position is at less than 1.97' from clamping jaws).
    Feature 5:
    The clamping jaws of chunk are reversible.
    Feature 6:
    Made of tool steel
    Feature 7:
    Hardness HRC56-58.
    $5,590.68
  • Insize 6529-5 precision measuring tool

    Insize 6529-5 – Sine Table

    Insize

    $1,553.25
    Insize 6529-5 – Sine Table
    6529-5
    SKU:
    6529-5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    17.64 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6529-5
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6940561949339
    Package Weight:
    17.64 lb
    Package Length:
    6.3 in
    Package Width:
    5.51 in
    Package Height:
    3.15 in
    Feature 1:
    Roller distance 5'
    Feature 2:
    Table size 6×5'
    Feature 3:
    Adjustable angle 0-60°
    Feature 4:
    Accuracy of angle: ±15'
    Feature 5:
    Made of alloy tool steel
    Feature 6:
    Hardness HRC58-60
    $1,553.25
  • Insize 6531-5 precision measuring tool

    Insize 6531-5 – 1-2-3 Blocks, 3x2x1IN

    Insize

    $91.77
    Insize 6531-5 – 1-2-3 Blocks, 3x2x1
    6531-5
    SKU:
    6531-5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.95 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6531-5
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640379338
    Package Weight:
    2.95 lb
    Package Length:
    8.9 in
    Package Width:
    5.04 in
    Package Height:
    1.69 in
    Feature 1:
    Pairs of matched blocks for positioning and set-up
    Feature 2:
    Screws and wrench are included
    Feature 3:
    Hardness HRC 55-62
    $91.77
  • Insize 6531-8 precision measuring tool

    Insize 6531-8 – 2-4-6 Blocks, 6x4x2IN

    Insize

    $295.45
    Insize 6531-8 – 2-4-6 Blocks, 6x4x2
    6531-8
    SKU:
    6531-8
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.98 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6531-8
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6940561966367
    Package Weight:
    1.98 lb
    Package Length:
    5.98 in
    Package Width:
    4.02 in
    Package Height:
    2.01 in
    Feature 1:
    Pairs of matched blocks for positioning and set-up
    Feature 2:
    Screws and wrench are included
    Feature 3:
    Hardness HRC 55-62
    $295.45
  • Insize 6532-10 precision measuring tool

    Insize 6532-10 – Parallel Set, 10 Pairs, 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8, 1-1/2, 1-5/8IN

    Insize

    $133.00
    Insize 6532-10 – Parallel Set, 10 P
    6532-10
    SKU:
    6532-10
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    3.31 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6532-10
    Product Family:
    Measuring Tool Sets
    Supplier Category Code:
    A
    EAN:
    6928640379345
    Package Weight:
    3.31 lb
    Package Length:
    10.63 in
    Package Width:
    9.45 in
    Package Height:
    3.35 in
    Feature 1:
    Parallelism between top and buttom: .0003'
    Feature 2:
    Height difference of a matched pair: .0003'
    Feature 3:
    Hardened HRC55-62
    Feature 4:
    With two holes in each parallel
    $133.00
  • Insize 6532-9 precision measuring tool

    Insize 6532-9 – Parallel Set, 9 Pairs, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8, 1-1/2, 1-5/8, 1-3/4IN

    Insize

    $202.35
    Insize 6532-9 – Parallel Set, 9 Pai
    6532-9
    SKU:
    6532-9
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    10.80 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6532-9
    Product Family:
    Measuring Tool Sets
    Supplier Category Code:
    A
    EAN:
    6928640379352
    Package Weight:
    10.8 lb
    Package Length:
    10.63 in
    Package Width:
    9.45 in
    Package Height:
    3.35 in
    Feature 1:
    Parallelism between top and buttom: .0003'
    Feature 2:
    Height difference of a matched pair: .0003'
    Feature 3:
    Hardened HRC55-62
    Feature 4:
    With two holes in each parallel
    $202.35
  • Insize 6535-25 precision measuring tool

    Insize 6535-25 – Adjustable Angle Block, 3.0x1.0x1.4IN

    Insize

    $430.82
    Insize 6535-25 – Adjustable Angle B
    6535-25
    SKU:
    6535-25
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.32 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6535-25
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640320927
    Package Weight:
    1.32 lb
    Package Length:
    7.48 in
    Package Width:
    4.53 in
    Package Height:
    3.15 in
    Feature 1:
    Made of hardened tool steel.
    Feature 2:
    With locking screw.
    Feature 3:
    3.0' x 1.0' x 1.4' with Angles 30-0-60
    Feature 4:
    Accuracy of angle: 10'
    Feature 5:
    Graduation of angle: 10'
    $430.82
  • Insize 6535-30 precision measuring tool

    Insize 6535-30 – Adjustable Angle Block, 4.0x1.2x1.9IN

    Insize

    $486.23
    Insize 6535-30 – Adjustable Angle B
    6535-30
    SKU:
    6535-30
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    2.46 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6535-30
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640320934
    Package Weight:
    2.46 lb
    Package Length:
    7.28 in
    Package Width:
    4.13 in
    Package Height:
    2.76 in
    Feature 1:
    Made of hardened tool steel.
    Feature 2:
    With locking screw.
    Feature 3:
    4.0' x 1.2' x 1.9' with Angles 30-0-60
    Feature 4:
    Accuracy of angle: 10'
    Feature 5:
    Graduation of angle: 10'
    $486.23
  • Insize 6536-5 precision measuring tool

    Insize 6536-5 – Compound Sine Table, 6x6IN

    Insize

    $2,845.25
    Insize 6536-5 – Compound Sine Table
    6536-5
    SKU:
    6536-5
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    30.86 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6536-5
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6928640389405
    Package Weight:
    30.86 lb
    Package Length:
    6.3 in
    Package Width:
    6.3 in
    Package Height:
    4.72 in
    Feature 1:
    Accuracy of angle ±15 seconds
    Feature 2:
    Made of alloy tool steel
    Feature 3:
    Hardness HRC58~60
    $2,845.25
  • Insize 6537-400 precision measuring tool

    Insize 6537-400 – Permanent Magnetic Chuck, 16x8IN

    Insize

    $5,731.80
    Insize 6537-400 – Permanent Magneti
    6537-400
    SKU:
    6537-400
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    88.19 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6537-400
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6940561952667
    Package Weight:
    88.19 lb
    Package Length:
    25.59 in
    Package Width:
    11.81 in
    Package Height:
    9.84 in
    Feature 1:
    Magnetic force 225lbf/sq.in
    Feature 2:
    Pole pitch .04+.12'
    $5,731.80
  • Insize 6539-100 precision measuring tool

    Insize 6539-100 – Magnetic Square with V Groove, 4x4x4IN

    Insize

    $2,233.45
    Insize 6539-100 – Magnetic Square w
    6539-100
    SKU:
    6539-100
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    15.43 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6539-100
    Product Family:
    Testing and Specialty Instruments
    Supplier Category Code:
    A
    EAN:
    6940561952650
    Package Weight:
    15.43 lb
    Package Length:
    7.87 in
    Package Width:
    7.87 in
    Package Height:
    7.87 in
    Feature 1:
    Hold flat and cylindrical workpieces for inspection and marking.
    Feature 2:
    Magnetic force on top, left, right and V grooves.
    Feature 3:
    Parallelism and squareness of top, bottom, left, right and back: 394μin.
    Feature 4:
    Parallelism and squareness of V groove to top, bottom, left, right and back: 394μin.
    $2,233.45
  • Insize 6547-E1 precision measuring tool

    Insize 6547-E1 – Right Angle Plate, 3.9x3.9x4.5IN

    Insize

    $962.35
    Insize 6547-E1 – Right Angle Plate,
    6547-E1
    SKU:
    6547-E1
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    9.01 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6547-E1
    Product Family:
    Squares, Levels, and Angle Measurement
    Supplier Category Code:
    A
    EAN:
    6928640359521
    Package Weight:
    9.01 lb
    Package Length:
    8.07 in
    Package Width:
    5.71 in
    Package Height:
    5.31 in
    Feature 1:
    Hardened to HRC60±2. V groove for cylinders.
    Feature 2:
    Parallelism and squareness between A, B, C, D, E, F, G and H: 236μin.
    Feature 3:
    Parallelism and squareness of V groove to A, B, C, D, E, F, G and H: 236μin.
    $962.35
  • Insize 6557-50E precision measuring tool

    Insize 6557-50E – Digital Zero Setter, Height 2IN

    Insize

    $180.50
    Insize 6557-50E – Digital Zero Sett
    6557-50E
    SKU:
    6557-50E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    1.10 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6557-50E
    Product Family:
    Stands, Holders, and Accessories
    Supplier Category Code:
    A
    EAN:
    6940561963953
    Package Weight:
    1.1 lb
    Package Length:
    3.94 in
    Package Width:
    3.94 in
    Package Height:
    3.94 in
    Feature 1:
    Resolution .00005'/0.001mm
    Feature 2:
    IP65 dust/waterproof.
    Feature 3:
    Buttons: on/off, mm/inch, zero
    Feature 4:
    CR2032 battery
    Feature 5:
    Automatic power off
    Feature 6:
    Magnetic base
    Feature 7:
    Automatic backlight at zero
    $180.50
  • Insize 6566-2 precision measuring tool

    Insize 6566-2 – Electronic Edge Finder, without Beeper, Shank 20MM

    Insize

    $163.08
    Insize 6566-2 – Electronic Edge Fin
    6566-2
    SKU:
    6566-2
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.88 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6566-2
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    A
    EAN:
    6928640321191
    Package Weight:
    0.88 lb
    Package Length:
    7.72 in
    Package Width:
    4.33 in
    Package Height:
    1.26 in
    Feature 1:
    The shank is electrically conducted to the metal workpiece through the chuck and table, the LED lights up and the beeper sounds(only for 6566-3), when the ball touches the workpiece. Not suitable for rotary use. Hardened shank and contact ball.
    $163.08
  • Insize 6566-2E precision measuring tool

    Insize 6566-2E – Electronic Edge Finder, without Beeper, Shank (a) 3/4IN DIA

    Insize

    $177.65
    Insize 6566-2E – Electronic Edge Fi
    6566-2E
    SKU:
    6566-2E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.80 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6566-2E
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    A
    EAN:
    6928640374869
    Package Weight:
    0.8 lb
    Package Length:
    7.72 in
    Package Width:
    4.33 in
    Package Height:
    1.26 in
    Feature 1:
    The shank is electrically conducted to the metal workpiece through the chuck and table,
    Feature 2:
    the LED lights up and the beeper sounds(only for 6566-3E),
    Feature 3:
    when the ball touches the workpiece
    Feature 4:
    Not suitable for rotary use. Hardened shank and contact ball
    Feature 5:
    Hardened shank and contact ball
    $177.65
  • Insize 6566-3 precision measuring tool

    Insize 6566-3 – Electronic Edge Finder, with Beeper, Shank 20MM

    Insize

    $207.23
    Insize 6566-3 – Electronic Edge Fin
    6566-3
    SKU:
    6566-3
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.87 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6566-3
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    A
    EAN:
    6928640321207
    Package Weight:
    0.87 lb
    Package Length:
    7.72 in
    Package Width:
    4.33 in
    Package Height:
    1.26 in
    Feature 1:
    The shank is electrically conducted to the metal workpiece through the chuck and table, the LED lights up and the beeper sounds(only for 6566-3), when the ball touches the workpiece.
    Feature 2:
    Not suitable for rotary use.
    Feature 3:
    Hardened shank and contact ball.
    $207.23
  • Insize 6566-3E precision measuring tool

    Insize 6566-3E – Electronic Edge Finder, with Beeper, Shank (a) 3/4IN DIA

    Insize

    $225.15
    Insize 6566-3E – Electronic Edge Fi
    6566-3E
    SKU:
    6566-3E
    Availability:
    Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
    Weight:
    0.80 LBS
    Brand:
    Insize
    Manufacturer Part Number:
    6566-3E
    Product Family:
    Precision Measuring Tools
    Supplier Category Code:
    A
    EAN:
    6928640374876
    Package Weight:
    0.8 lb
    Package Length:
    7.72 in
    Package Width:
    4.33 in
    Package Height:
    1.26 in
    Feature 1:
    The shank is electrically conducted to the metal workpiece through the chuck and table,
    Feature 2:
    the LED lights up and the beeper sounds(only for 6566-3E),
    Feature 3:
    when the ball touches the workpiece
    Feature 4:
    Not suitable for rotary use. Hardened shank and contact ball
    Feature 5:
    Hardened shank and contact ball
    $225.15