100mm Digital Caliper – Carbon Fibre Composite Vernier Micrometer Measuring Tool

Measure with accuracy and ease. These affordable lightweight carbon-fiber digital calipers are ideal for hobbyists, engineers, and DIY enthusiasts who need precise measurements of inside, outside, and depth dimensions.

Perfect for model railway builders who want accurate scaling when working with track, glazing, wheels, and small detail parts when you are looking for a budget friendly handy set

Features:

• ✅ Internal & external measuring – ideal for parts of all shapes.

• ✅ Large LCD display – clear and easy to read.

• ✅ Zero setting at any position – measure relative or absolute dimensions.

• ✅ Lightweight & durable carbon fiber composite construction.

• ✅ Compact & precise – perfect for modelling, electronics, jewellery, and crafts.

Specifications:

• (choose from dropdown)

• Resolution: 0.1mm / 0.01 inch

• Accuracy: ±0.2mm

• Display: Large LCD screen

• Power: 1 × AG13 1.5V cell battery (included)

• Weight: ~53g

Package includes:

• 1 × Digital Caliper (100mm )

• 1 × AG13 battery (installed)

Perfect for:

• Model railways & miniature building

• Electronics & engineering

• Jewelry & craft work

• General DIY & measuring tasks

Item specifics (for eBay search)

• Condition: New

• Type: Digital Vernier Caliper

• Material: Carbon Fiber Composite

• Brand: Unbranded / Generic

• Display: LCD

• Resolution: 0.1mm / 0.01 inch

• Accuracy: ±0.2mm

• Power Source: AG13 1.5V Battery

• Measuring Range: 0–100mm 

• Features: Lightweight, Precise, Easy to Read, Zero Reset, Locking Screw

• Suitable For: Model Railways, Crafts, Electronics, Jewellery, DIY

FAQ – Product FAQs

What are these digital calipers best suited for?

These lightweight carbon-fiber digital calipers are ideal for hobby and light workshop use where you need quick, accurate measurements of inside, outside, and depth dimensions. They’re especially handy for model railway work, small parts in electronics, jewellery, crafts, and general DIY measuring tasks.

What is the measuring range and resolution?

The calipers measure from 0–100 mm with a resolution of 0.1 mm (0.01 inch). This makes them well suited to small and medium model parts, track components, glazing, wheels, and other fine detail work.

How accurate are these calipers?

The stated accuracy is ±0.2 mm. For most modelling, craft, and DIY applications this is more than sufficient, especially when checking clearances, scaling drawings, or matching parts.

What material are the calipers made from?

They are made from a lightweight and durable carbon fiber composite. This keeps the tool easy to handle for long sessions at the workbench and helps protect delicate models from accidental scratches that can occur with heavier metal tools.

What comes in the package?

Each set includes:

• 1 × Digital caliper (0–100 mm range)
• 1 × AG13 1.5 V battery (installed)

Who are these calipers suitable for?

They’re designed for anyone who needs precise small-scale measurements, including:

• Model railway and miniature builders
• Electronics and engineering hobbyists
• Jewellery makers and crafters
• General DIY users

How do I turn the calipers on and off?

The calipers power up when you start measuring or press a button (depending on the exact variant supplied). To conserve the AG13 battery, avoid leaving the display active unnecessarily and store the caliper with the jaws closed when not in use.

How do I use the zero setting feature?

The zero setting lets you reset the display at any jaw position so you can measure relative differences as well as absolute sizes. To use it:

• Close the jaws fully and press the zero button to set an absolute zero.
• Alternatively, place the jaws on a reference part or gauge, press zero, and then measure another part to see the difference directly on the display.

Can I measure inside, outside, and depth with these calipers?

Yes. The calipers are designed for:

• External measurements using the main jaws (e.g. wheel diameters, rail width).
• Internal measurements using the smaller upper jaws (e.g. window openings, tube bores).
• Depth measurements using the depth rod (e.g. recesses, slots, and pockets in baseboards or models).

Are these calipers suitable for metalworking or heavy industrial use?

They are best suited to hobby, modelling, and light DIY work rather than heavy industrial or precision machining environments. The carbon fiber composite construction and ±0.2 mm accuracy are ideal for models and crafts but not intended as a substitute for high-end metal workshop calipers.

The display is blank or very faint. What should I check first?

A blank or faint display is usually due to the battery. Check the following:

• Ensure the AG13 1.5 V battery is correctly seated.
• Replace the battery if the display is dim or unstable.
• Wipe the battery contacts gently if they appear dull or dirty.

The caliper doesn’t return to zero when I close the jaws. How do I fix this?

If the reading is not zero when the jaws are fully closed:

• Make sure the jaws are clean and free of dust, swarf, or paint.
• Close the jaws gently without force.
• Press the zero button while the jaws are fully closed to reset the reference point.

The measurements seem inconsistent. What could be causing this?

Inconsistent readings are often due to handling or contamination. Check that you are:

• Holding the caliper square to the part, without twisting.
• Applying light, even pressure on the jaws.
• Keeping the scale and jaws clean and dry.

If problems persist, replace the battery and re-zero the caliper.

The caliper feels “sticky” when sliding. How can I improve this?

Over time, dust and debris can make the slide feel rough. To improve it:

• Wipe the beam and jaws with a soft, dry cloth.
• Avoid oils and solvents, as they can affect the carbon fiber composite and the scale markings.
• Store the caliper in a clean, dry place away from loose ballast, sawdust, or metal filings.

Can the calipers be used in a damp or dusty workshop?

They are fine for normal hobby bench conditions, but avoid prolonged exposure to moisture, spray paints, or heavy dust. Wipe the tool down after use in a dusty environment and keep it away from direct water or cleaning sprays to protect the electronics and display.

How can I use these calipers for model railway track work?

These calipers are very handy for consistent, reliable track building. For example, you can:

• Check rail head width and rail height when mixing track brands.
• Measure back-to-back wheel spacing for smooth running.
• Set platform clearances and structure gauges to your chosen scale.
• Measure baseboard cut-outs and slots for point motors and wiring channels.

How do I use the calipers when cutting glazing and windows?

For clear plastic glazing and window apertures:

• Use the internal jaws to measure the opening in your coach side or building.
• Transfer that measurement to your glazing sheet using the caliper as a marking gauge.
• Cut slightly oversize, then trim back while checking with the caliper until you get a snug fit.

Can I use the calipers to help with scratch-building and kit-bashing?

Yes, they are ideal for scratch-building. You can:

• Scale dimensions from drawings by measuring and converting to your modelling scale.
• Match strip, rod, and section sizes when combining parts from different kits.
• Check repeated parts (like pillars, beams, or wagon sides) to keep everything consistent.

How do these calipers help with painting and detailing?

While they are not a painting tool, they support accurate detailing by:

• Measuring spacing for handrails, grab irons, and rivet strips.
• Setting consistent widths for masking tape strips.
• Checking the size of transfers and decals against the model before application.

Any tips for storing the calipers at the workbench?

To keep them in good condition:

• Store with the jaws closed to protect the measuring faces.
• Keep them away from paint overspray, adhesives, and flux.
• Place them in a drawer, tool rack, or case rather than loose in a toolbox with heavy metal tools.