Proster Vernier Calipe Digital Vernier Caliper Kit, 150 mm/6 Inch with Feeler Gauge

Benefits

For workshop tasks that call for measuring inside or outside dimensions, depth or step readings, this digital caliper brings several measuring methods into one tool. Its jaws and depth probe support different types of measurement, while the large LCD makes readings easy to see. Switch between inches, metric units and fractions to work in the format that suits the job.

The stainless steel caliper has a measurement range of 0–150 mm (0–6 inches), with a stated accuracy of 0.001"/0.02 mm. That makes it a practical choice for jobs where a ruler is not suited to checking smaller dimensions, such as measuring a component’s internal opening, external width or depth. For checking gaps, the included feeler gauge provides a separate set of blades in fine increments.

Highlights

The caliper offers a resolution of 0.0005"/1/128"/0.01 mm and converts between inch, metric and fractional readings. This flexibility is useful when working from measurements or plans that use different formats. Its hardened stainless steel construction is designed for repeated measuring tasks, and the set includes a fitted storage case for keeping the tools together between jobs.

The feeler gauge has 32 blades made from 65 manganese steel and covers 0.0015 inch/0.04 mm to 0.035 inch/0.88 mm. Use it to gauge narrow clearances where caliper jaws are not the right tool. The blades have a lubricant oil coating intended to help prevent pitting and corrosion. Buyers commonly praise the caliper’s sturdy feel and say its accuracy suits their needs, feedback on reliability is mixed, with some reporting good operation and others describing malfunctions.

Getting the most from it

Choose the measuring surface to suit the task: the jaws handle internal and external dimensions, while the probe is for depth and step readings. Set the display to inches, metric or fractions before recording a measurement, so the reading matches the format you are using. For a narrow gap, select a suitable feeler-gauge blade and check the clearance directly rather than relying on the caliper jaws.

The kit includes the digital caliper, feeler gauge, storage case, battery, mini screwdriver and user manual. Keeping the caliper and gauge in the case makes it easier to store and carry the set as one measuring kit. You’ll like it if you want a digital calliper for varied dimensions alongside a dedicated gauge for fine clearances.

Before you decide

What can the digital caliper measure? Its jaws and probe support internal, external, depth and step measurements, covering a range from 0 to 150 mm or 0 to 6 inches.

Can it display measurements in different formats? Yes. It supports inch, metric and fractional measurement modes, so you can choose the format that matches the task.

What is the feeler gauge range? Its 32 blades cover 0.0015 inch/0.04 mm to 0.035 inch/0.88 mm, for checking narrow gaps and clearances.

Final verdict

This Proster kit suits workshop users and DIY tasks that benefit from both versatile calliper measurements and a dedicated feeler gauge. The stainless steel digital caliper covers several measurement types and display formats, while the gauge adds fine clearance checks in the same stored set.