Thickness & Gauge Measuring

Thickness and gauge measuring tools help professionals check gaps, clearances, coatings, and material dimensions during inspection, adjustment, maintenance, and quality-control work. This category includes feeler gauges for close spacing, coating gauges for coated metal substrates, dial and digital thickness gauges for direct measurements, an ultrasonic kit for component checks, and a digital rotor gauge for brake service evaluation.

Product Display:
Helpful Buying Guide

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.

Visual Guide

Popular examples in this category

Metric Steel Feeler Gauge Assortment with 20 BladesMetric Steel Feeler Gauge Assortment with 20 BladesWBB513381Coating Thickness Gauge, 1000 µmCoating Thickness Gauge, 1000 µmWBB3181894Ultrasonic Thickness Gauge Kit with 5-Step Calibration BlockUltrasonic Thickness Gauge Kit with 5-Step Calibration BlockWBB3161486Coating Thickness Gauge, 1250 µm/50 MilsCoating Thickness Gauge, 1250 µm/50 MilsWBB3076534
Use Cases

Match 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.

How to Choose

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.

Applications

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.

Additional Information

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.

20Metric feeler blades

The metric steel assortment provides 20 labeled thicknesses from 0.05 mm to 1.00 mm.

25Master feeler blades

The heavy-duty master feeler gauge set provides 25 blade thicknesses.

0.0001 in.Digital thickness resolution

The 0 to 0.47 in. / 0 to 12 mm digital thickness gauge provides this stated resolution.

3.5 in.Rotor gauge jaw depth

The digital rotor gauge has a stated 3.5 in. jaw depth.

Comparison Guide

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 typeBest suited forFeatures to compare
Feeler gaugesNarrow gaps, close clearances, fitting, and adjustment workBlade count and thickness selection; straight or bent blades; metric, decimal, or dual markings; holder and storage design
Coating thickness gauges and probesNon-magnetic coatings on ferrous and non-ferrous metal substratesMeasurement range; substrate or probe recognition; calibration method; units; tolerance indicators; compatible replacement probe requirements
Direct and ultrasonic thickness gaugesMaterial thickness checks, component inspection, and rotor evaluationMeasuring range; resolution or graduations; inch or metric operation; display type; contact arrangement, jaw depth, calibration block, or data output
Planning Guide

Plan the right fit before choosing

Step 1

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.
Step 2

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.
Step 3

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.
FAQ

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.

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