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REED Instruments
Ultrasonic Leak Detector, 40 kHz
Our Price:$109.94This ultrasonic leak detector helps maintenance and inspection personnel evaluate individual machinery components by converting ultrasound signals into audible sounds. It is designed to help users...
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REED Instruments
Ultrasonic Thickness Gauge Couplant Gel
Our Price:$65.94This general-purpose ultrasonic couplant gel helps inspection professionals and maintenance teams obtain reliable contact between a transducer and the test surface when using ultrasonic thickness...
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REED Instruments
Ultrasonic Thickness Gauge with LCD Display
Our Price:$409.94This ultrasonic thickness gauge helps inspection and maintenance teams check material thickness on supported metals, glass, and plastics. It provides a practical way to take thickness readings with a...
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Choose Thickness and Gauge Measuring Tools for the Measurement at Hand
Start with what needs to be measured: a narrow clearance, a coating on metal, material thickness, or rotor thickness. Then compare the available range, measurement units, readout style, access needs, calibration features, and compatibility requirements shown for each tool type.
Popular examples in this category
Metric Steel Feeler Gauge Assortment with 20 BladesWBB513381
Coating Thickness Gauge, 1000 µmWBB3181894
Ultrasonic Thickness Gauge Kit with 5-Step Calibration BlockWBB3161486
Coating Thickness Gauge, 1250 µm/50 MilsWBB3076534Match the tool to the measurement
Use feeler gauges for small gaps and clearances during fitting, adjustment, and inspection. Choose coating gauges for non-magnetic coatings on ferrous or non-ferrous metal substrates. Dial and digital thickness gauges support direct material checks, while the ultrasonic kit is intended for monitoring pipes, pressure vessels, and other components.
Compare range, resolution, and access
Select a range that covers the thickness or clearance being checked. Compare stated resolution or graduations where provided, choose inch, metric, or dual markings as needed, and consider blade shape, jaw depth, or lifting controls for the measurement location and workflow.
Support inspection, maintenance, and quality work
These tools are represented in manufacturing, industrial maintenance, automotive inspection and service, machining, and quality-control tasks. Typical work includes checking close spacing, verifying paint or plating thickness, evaluating rotors, and taking repeatable material thickness measurements.
Consider calibration, data, and replacement needs
Some coating gauges offer zero or two-point calibration, automatic substrate or probe recognition, tolerance alarms, and visual indicators. Selected electronic gauges provide LCD displays, unit selection, SPC output, or USB data capability. Replacement ferrous and non-ferrous probes are available for the compatible CM-8822 coating thickness gauge.
The metric steel assortment provides 20 labeled thicknesses from 0.05 mm to 1.00 mm.
The heavy-duty master feeler gauge set provides 25 blade thicknesses.
The 0 to 0.47 in. / 0 to 12 mm digital thickness gauge provides this stated resolution.
The digital rotor gauge has a stated 3.5 in. jaw depth.
Compare the Main Tool Types
Use this overview to narrow the category by the type of thickness or gap being checked and the features represented in the available products.
| Tool type | Best suited for | Features to compare |
|---|---|---|
| Feeler gauges | Narrow gaps, close clearances, fitting, and adjustment work | Blade count and thickness selection; straight or bent blades; metric, decimal, or dual markings; holder and storage design |
| Coating thickness gauges and probes | Non-magnetic coatings on ferrous and non-ferrous metal substrates | Measurement range; substrate or probe recognition; calibration method; units; tolerance indicators; compatible replacement probe requirements |
| Direct and ultrasonic thickness gauges | Material thickness checks, component inspection, and rotor evaluation | Measuring range; resolution or graduations; inch or metric operation; display type; contact arrangement, jaw depth, calibration block, or data output |
Plan the right fit before choosing
Identify the measurement method
The product types in this category address different measurement tasks, so choosing the right method comes first.
- Feeler gauge sets use individual blades to check narrow gaps and clearances; options include straight metric blades, bent blades for angled access, and a 25-blade master set.
- Coating thickness gauges measure non-magnetic coatings on metal substrates. Available features include ferrous and non-ferrous measurement capability, automatic recognition or detection, and tolerance-related functions.
- Dial and digital thickness gauges provide direct thickness readings using contact surfaces and a spindle mechanism.
- The ultrasonic thickness gauge kit includes a 5-step calibration block for verification work on pipes, pressure vessels, and other components.
- The digital rotor gauge is designed for rotor thickness checks during automotive inspection and service work.
Compare measurement range and reading format
Choose a tool whose stated range and display or marking format fit the work being performed.
- The metric steel feeler gauge assortment covers 0.05 mm to 1.00 mm across 20 labeled blades.
- The 0–1 in. flat dial thickness gauge has 0.001 in. dial graduations, while the digital thickness gauge measures 0 to 0.47 in. / 0 to 12 mm with 0.0001 in. resolution.
- The 0 to 0.50 in. dial thickness gauge provides a separate direct-measurement option.
- Coating gauge choices include 1000 µm and 1250 µm / 50 mil models, with selected models offering microns or mils.
- The ultrasonic gauge offers 0.004 in. resolution and selectable inch or millimeter units; the rotor gauge supports inches, millimeters, or fractional increments.
Review handling, inspection, and workflow features
Features can help fit the tool to access requirements and inspection routines.
- Bent feeler blades help reach locations requiring angled access, while narrow master-gauge blades and a locking holder support work at tight measurement points.
- Etched blade markings identify selected thicknesses; the bent set includes decimal and metric-equivalent information.
- Dial thickness gauges include ceramic contact surfaces, spring-loaded spindles, lifting levers, and grip handles.
- Coating gauge features can include zero adjustment, calibration options, LCD displays, tri-color indicators, adjustable tolerance alarms, and USB data interface capability.
- Carrying and storage features include a folding vinyl case for the metric feeler gauge assortment and a hard carrying case for the ultrasonic gauge kit.
Common questions before buying
What is the difference between a feeler gauge and a thickness gauge?
Feeler gauges use blades of known thickness to check gaps and clearances. Thickness gauges are used for direct thickness measurements, with dial, digital, ultrasonic, coating, and rotor-specific options represented in this category.
Which tools can measure coating thickness?
The coating thickness gauges measure non-magnetic coatings on ferrous and non-ferrous metal substrates. Replacement ferrous and non-ferrous probes are available for the compatible CM-8822 coating thickness gauge.
When is a bent feeler gauge useful?
A bent feeler gauge is useful when the measurement point needs angled access. The bent blade design helps reach locations that are difficult to access with straight gauges.
What units are available on electronic gauges?
Available unit options include microns or mils on a coating gauge, inch or millimeter on the ultrasonic gauge, inch or metric on a digital thickness gauge, and inches, millimeters, or fractional increments on the digital rotor gauge.