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
CalipersDigital, dial and vernier calipers, 0-6IN to 0-40IN, plus inside-groove, offset and special-jaw models.MicrometersOutside, inside, three-point, depth, blade, V-anvil and spline micrometers; digital to .00005IN.Height GagesDigital, dial and vernier height gages from 0-.8IN mini gages to 0-80IN, plus scribers.Depth MeasurementDigital depth gages, hook and double-hook depth gages, mini and keyway gages, extension bases.Bore & Inside MeasurementDial and digital bore gages, split-type gages for small holes, deep-hole gages, telescoping gages.Indicators & Test IndicatorsDial and digital indicators, dial test indicators, styli, backs and zero setters.
Gages, Standards & Layout
Gage Blocks, Pins & Setting StandardsGage blocks and sets, angle blocks, pin gages, setting rings, micrometer setting standards, balls.Thread Gages & Thread MeasurementGO/NO GO thread ring and plug gages (metric, UN, NPT, BSPT, G), 3-wires, thread micrometer tips.Gages & Reference ToolsSnap gages, radius, feeler, chamfer, taper, thickness and welding gages.Squares, Levels & AngleMachinist and granite squares, block and frame levels, protractors and digital levels.Rules, Straight Edges & LayoutSteel rules, straight edges, scribers, dividers and measuring tapes.
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
Surface Plates & WorkholdingGranite surface plates and stands, V-blocks, bench centers, sine tables, angle plates, CMM fixtures.Stands, Holders & AccessoriesMagnetic and granite indicator stands, holders, contact points, extension bases.Linear Scales, DROs & Machine ProbesLinear scales and digital readouts, CNC touch probes and styli, edge finders, tool presetters.Data Collection & WirelessData output cables, wireless transmitters and receivers, foot switches and hubs for SPC.Measuring Tool SetsCaliper and micrometer starter sets, combination square sets, training kits.
Choosing the right tool
| If you need to… | Start with | Shop |
|---|---|---|
| Check an outside diameter or length at the machine | Digital caliper, then an outside micrometer for tighter tolerance | Calipers · Micrometers |
| Measure a bore or internal diameter | Three-point internal micrometer, dial bore gage or telescoping gage | Bore & Inside Measurement |
| Check runout, flatness or alignment | Dial or digital indicator on a magnetic stand; dial test indicator for tight spots | Indicators & Test Indicators · Stands, Holders & Accessories |
| Accept or reject a threaded part | GO and NO GO thread ring or plug gages; 3-wires for pitch diameter | Thread Gages & Thread Measurement |
| Calibrate or zero your own tools | Gage blocks, setting rings, micrometer setting standards, pin gages | Gage Blocks, Pins & Setting Standards |
| Inspect small features without contact | Measuring microscope, profile projector or vision measuring system | Optical & 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 QuoteSend the Insize part number or the size you need to measure and the quantity — we reply the same day. (210) 494-1997 · [email protected]
- Calipers
- Micrometers
- Height Gages
- Depth Measurement
- Bore & Inside Measurement
- Indicators & Test Indicators
- Gage Blocks, Pins & Setting Standards
- Thread Gages & Thread Measurement
- Gages & Reference Tools
- Squares, Levels & Angle
- Rules, Straight Edges & Layout
- Optical & Video Inspection
- Surface Roughness & Coating Thickness
- Ultrasonic Thickness & Flaw Detection
- Hardness Testers & Test Blocks
- Force & Material Testing
- Torque Wrenches & Testers
- Weights & Scales
- Testing & Specialty Instruments
- Surface Plates & Workholding
- Stands, Holders & Accessories
- Linear Scales, DROs & Machine Probes
- Data Collection & Wireless
- Measuring Tool Sets
-
Insize 6881-E1E – Gage Block Accessory, Half Round Jaw, .1IN, Supplied in Pair
Insize
$241.30Insize 6881-E1E – Gage Block Access6881-E1E- SKU:
- 6881-E1E
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.16 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6881-E1E
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358838
- Package Weight:
- 0.16 lb
- Package Length:
- 3.07 in
- Package Width:
- 2.95 in
- Package Height:
- 1.18 in
- Feature 1:
- Half round jaw
- Feature 2:
- size: .1'
- Feature 3:
- Made of carbide, supplied in pair
$241.30 -
Insize 6881-E2E – Gage Block Accessory, Half Round Jaw, .2IN, Supplied in Pair
Insize
$275.50Insize 6881-E2E – Gage Block Access6881-E2E- SKU:
- 6881-E2E
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.51 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6881-E2E
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358845
- Package Weight:
- 0.51 lb
- Package Length:
- 5.91 in
- Package Width:
- 3.94 in
- Package Height:
- 1.18 in
- Feature 1:
- Half round jaw
- Feature 2:
- size: .2'
- Feature 3:
- Made of carbide, supplied in pair
$275.50 -
Insize 6881-E3E – Gage Block Accessory, Half Round Jaw, .25IN, Supplied in Pair
Insize
$313.50Insize 6881-E3E – Gage Block Access6881-E3E- SKU:
- 6881-E3E
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.24 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6881-E3E
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358852
- Package Weight:
- 0.24 lb
- Package Length:
- 3.15 in
- Package Width:
- 2.95 in
- Package Height:
- 1.18 in
- Feature 1:
- Half round jaw
- Feature 2:
- size: .25'
- Feature 3:
- Made of carbide, supplied in pair
$313.50 -
Insize 6881-F – Gage Block Accessory, Scriber
Insize
$270.86Insize 6881-F – Gage Block Accessor6881-F- SKU:
- 6881-F
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.14 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6881-F
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640316111
- Package Weight:
- 0.14 lb
- Package Length:
- 3.15 in
- Package Width:
- 2.95 in
- Package Height:
- 1.18 in
- Feature 1:
- Scriber
- Feature 2:
- Carbide
- Feature 3:
- Gage block accessory
$270.86 -
Insize 6881-G – Gage Block Accessory, Centre Point
Insize
$270.86Insize 6881-G – Gage Block Accessor6881-G- SKU:
- 6881-G
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.10 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6881-G
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640316128
- Package Weight:
- 0.1 lb
- Package Length:
- 3.11 in
- Package Width:
- 2.95 in
- Package Height:
- 1.18 in
- Feature 1:
- Center Point
- Feature 2:
- Carbide tip
- Feature 3:
- Gage block accessory
$270.86 -
Insize 6881-H – Base for Holder, Supplied in Pair
Insize
$464.55Insize 6881-H – Base for Holder, Su6881-H- SKU:
- 6881-H
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 15.27 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6881-H
- Product Family:
- Stands, Holders, and Accessories
- Supplier Category Code:
- A
- EAN:
- 6928640379086
- Package Weight:
- 15.27 lb
- Package Length:
- 13.62 in
- Package Width:
- 9.13 in
- Package Height:
- 4.92 in
$464.55 -
Insize 6881-S17E – Gage Block Accessory Set, 17 Pcs
Insize
$5,015.05Insize 6881-S17E – Gage Block Acces6881-S17E- SKU:
- 6881-S17E
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 12.35 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6881-S17E
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640358869
- Package Weight:
- 12.35 lb
- Package Length:
- 17.83 in
- Package Width:
- 11.81 in
- Package Height:
- 2.17 in
$5,015.05 -
Insize 6883-1 – Gage Block Holder, .06-.2IN
Insize
$28.41Insize 6883-1 – Gage Block Holder,6883-1- SKU:
- 6883-1
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.11 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6883-1
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640348372
- Package Weight:
- 0.11 lb
- Package Length:
- 2.95 in
- Package Width:
- 3.07 in
- Package Height:
- 1.18 in
- Feature 1:
- Made of aluminum.
- Feature 2:
- To be used with individual steel gage block (part no.4112) as Go and No-Go gage.
$28.41 -
Insize 6883-2 – Gage Block Holder, .2-.4IN
Insize
$28.41Insize 6883-2 – Gage Block Holder,6883-2- SKU:
- 6883-2
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.11 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6883-2
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640348389
- Package Weight:
- 0.11 lb
- Package Length:
- 2.95 in
- Package Width:
- 3.07 in
- Package Height:
- 1.18 in
- Feature 1:
- Made of aluminum.
- Feature 2:
- To be used with individual steel gage block (part no.4112) as Go and No-Go gage.
$28.41 -
Insize 6883-3 – Gage Block Holder, .4-.6IN
Insize
$28.41Insize 6883-3 – Gage Block Holder,6883-3- SKU:
- 6883-3
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.11 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6883-3
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640348396
- Package Weight:
- 0.11 lb
- Package Length:
- 3.15 in
- Package Width:
- 2.95 in
- Package Height:
- 1.18 in
- Feature 1:
- Made of aluminum.
- Feature 2:
- To be used with individual steel gage block (part no.4112) as Go and No-Go gage.
$28.41 -
Insize 6883-4 – Gage Block Holder, .6-.8IN
Insize
$28.41Insize 6883-4 – Gage Block Holder,6883-4- SKU:
- 6883-4
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.12 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6883-4
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640348402
- Package Weight:
- 0.12 lb
- Package Length:
- 3.07 in
- Package Width:
- 2.95 in
- Package Height:
- 1.22 in
- Feature 1:
- Made of aluminum.
- Feature 2:
- To be used with individual steel gage block (part no.4112) as Go and No-Go gage.
$28.41 -
Insize 6883-5 – Gage Block Holder, .8-1IN
Insize
$28.41Insize 6883-5 – Gage Block Holder,6883-5- SKU:
- 6883-5
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.12 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6883-5
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640348419
- Package Weight:
- 0.12 lb
- Package Length:
- 3.15 in
- Package Width:
- 2.95 in
- Package Height:
- 1.18 in
- Feature 1:
- Made of aluminum.
- Feature 2:
- To be used with individual steel gage block (part no.4112) as Go and No-Go gage.
$28.41 -
Insize 6884-E12 – Caliper/Height Gage Checker, 0-12IN
Insize
$3,039.05Insize 6884-E12 – Caliper/Height Ga6884-E12- SKU:
- 6884-E12
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 14.79 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6884-E12
- Product Family:
- Calipers
- Supplier Category Code:
- B
- EAN:
- 6928640358876
- Package Weight:
- 14.79 lb
- Package Length:
- 16.93 in
- Package Width:
- 5.91 in
- Package Height:
- 4.53 in
- Feature 1:
- To check calipers and height gages.
- Feature 2:
- Constructed with steel gage blocks.
- Feature 3:
- Size: 0-12'
- Feature 4:
- Accuracy: +/- 200µin.
$3,039.05 -
Insize 6884-E24 – Caliper/Height Gage Checker, 0-24IN
Insize
$4,923.85Insize 6884-E24 – Caliper/Height Ga6884-E24- SKU:
- 6884-E24
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 50.71 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6884-E24
- Product Family:
- Calipers
- Supplier Category Code:
- B
- EAN:
- 6928640358883
- Package Weight:
- 50.71 lb
- Package Length:
- 34.25 in
- Package Width:
- 10.24 in
- Package Height:
- 11.02 in
- Feature 1:
- To check calipers and height gages.
- Feature 2:
- Constructed with steel gage blocks.
- Feature 3:
- Size: 0-24'
- Feature 4:
- Accuracy: +/- 300µin.
$4,923.85 -
Insize 6884-E40 – Caliper/Height Gage Checker, 0-40IN
Insize
$10,453.80Insize 6884-E40 – Caliper/Height Ga6884-E40- SKU:
- 6884-E40
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 61.47 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6884-E40
- Product Family:
- Calipers
- Supplier Category Code:
- B
- EAN:
- 6928640358890
- Package Weight:
- 61.47 lb
- Package Length:
- 51.18 in
- Package Width:
- 13.39 in
- Package Height:
- 9.84 in
- Feature 1:
- To check calipers and height gages.
- Feature 2:
- Constructed with steel gage blocks.
- Feature 3:
- Size: 0-40'
- Feature 4:
- Accuracy: +/- 300µin.
$10,453.80 -
Insize 6886-1 – Gage Block Holder
Insize
$156.75Insize 6886-1 – Gage Block Holder6886-1- SKU:
- 6886-1
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.60 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6886-1
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640378980
- Package Weight:
- 0.6 lb
- Package Length:
- 5.24 in
- Package Width:
- 1.57 in
- Package Height:
- 1.57 in
- Feature 1:
- For gage blocks over 4' with clamping holes
- Feature 2:
- Optional accessary: gage block holder accessory, gage block accessory (part no. 6881)
$156.75
Insize 6886-A – Gage Block Holder Accessory, Supplied in Pair
Insize
$221.35Insize 6886-A – Gage Block Holder A6886-A- SKU:
- 6886-A
- 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:
- 6886-A
- Product Family:
- Gages and Reference Tools
- Supplier Category Code:
- A
- EAN:
- 6928640378997
- Package Weight:
- 0.8 lb
- Package Length:
- 6.34 in
- Package Width:
- 3.7 in
- Package Height:
- 1.26 in
$221.35
Insize 6887-1 – V-Block Set, Pair, 2.0x.7x.9IN
Insize
$231.25Insize 6887-1 – V-Block Set, Pair,6887-1- SKU:
- 6887-1
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 0.96 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6887-1
- Product Family:
- Measuring Tool Sets
- Supplier Category Code:
- A
- EAN:
- 6928640320729
- Package Weight:
- 0.96 lb
- Package Length:
- 6.1 in
- Package Width:
- 3.82 in
- Package Height:
- 1.65 in
- Feature 1:
- Two V blocks per set.
- Feature 2:
- Made of hardened tool steel.
- Feature 3:
- 2.0' x ,7' x .9' (LxWxH)
$231.25
Insize 6887-2 – V-Block Set, Pair, 3.0x.9x1.4IN
Insize
$294.44Insize 6887-2 – V-Block Set, Pair,6887-2- SKU:
- 6887-2
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 2.50 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6887-2
- Product Family:
- Measuring Tool Sets
- Supplier Category Code:
- A
- EAN:
- 6928640320736
- Package Weight:
- 2.5 lb
- Package Length:
- 6.3 in
- Package Width:
- 5.91 in
- Package Height:
- 3.94 in
- Feature 1:
- Two V blocks per set.
- Feature 2:
- Made of hardened tool steel.
- Feature 3:
- 3.0' x .9' x 1.4' (LxWxH)
$294.44
Insize 6887-3 – V-Block Set, Pair, 3.9x1.3x2.0IN
Insize
$393.10Insize 6887-3 – V-Block Set, Pair,6887-3- SKU:
- 6887-3
- Availability:
- Ships direct from Insize. Most items in stock; we confirm your ship date by email after you order.
- Weight:
- 5.67 LBS
- Brand:
- Insize
- Manufacturer Part Number:
- 6887-3
- Product Family:
- Measuring Tool Sets
- Supplier Category Code:
- A
- EAN:
- 6928640320743
- Package Weight:
- 5.67 lb
- Package Length:
- 6.69 in
- Package Width:
- 6.1 in
- Package Height:
- 3.94 in
- Feature 1:
- Two V blocks per set.
- Feature 2:
- Made of hardened tool steel.
- Feature 3:
- 3.9' x 1.3' x 2.0' (LxWxH)
$393.10