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0-25mm Metric Outside Micrometer - 3203 Series (Insize)

SKU:3203-25A

The 0-25 mm Metric Outside Micrometer from the 3203 Series by Insize is a precision hand tool built for machinists, inspectors, and workshop professionals who need reliable external measurements ... Read more ↓
Range (mm)0-25
Setting Ring287.5mm (optional)
l32
a9
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£24.91
Prices shown ex. VAT
4–5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The 0-25 mm Metric Outside Micrometer from the 3203 Series by Insize is a precision hand tool built for machinists, inspectors, and workshop professionals who need reliable external measurements with clean, repeatable results.

  • Graduation: 0.01 mm increments for fine, repeatable readings
  • Measuring faces: Carbide measuring faces extend tool life and resist wear in busy shop environments
  • Measurement range: Designed to handle workpieces up to 300 mm, offering versatility for a wide range of parts
  • Setting standards: Supplied with setting standards for quick calibration (except the 0–25 mm size)
  • Construction: Robust outside micrometer with a durable frame and precise thimble for everyday use

This micrometer delivers stable, accurate measurements essential for quality control and production workflows. The 0.01 mm graduation supports tight tolerances on components, while carbide faces reduce wear over time, maintaining measurement integrity across many cycles. The broad range up to 300 mm makes it a practical choice for various external dimension checks, from small components to larger assemblies. With included setting standards (where applicable), setup is faster and more consistent, helping you maintain high inspection standards without unnecessary downtime.

Part Numbers

Protool Part Number
3203-25A
Brand
Insize
Category
Measuring Tool
Delivery

Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.

Returns

14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.

Technical Support

Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Trade Accounts

Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.

What time are Protool open?

We are open Monday to Friday between 8:30am and 5pm.

Do you offer Free Next Day delivery?

Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.

We also offer the following:

  • Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
  • DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
  • Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
  • DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.

For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.

*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Metric Outside Micrometers - 3203 Series (Insize)

View full collection →

You are viewing 3203-25A. Click any other SKU to view its full details.

Product SKURange (mm)AccuracyPriceStock Order
3203-25A Viewing0-25±0.004mm£24.91 4-5 days
3203-50A 25-50±0.004mm£27.32 4-5 days
3203-75A 50-75±0.005mm£35.58 4-5 days
3203-100A 75-100±0.005mm£39.94 4-5 days
3203-125A 100-125±0.006mm£54.29 4-5 days
3203-150A 125-150±0.006mm£62.21 4-5 days
3203-175A 150-175±0.007mm£78.86 4-5 days
3203-200A 175-200±0.007mm£82.07 4-5 days
3203-225A 200-225±0.008mm£88.50 4-5 days
3203-250A 225-250±0.008mm£102.16 4-5 days
3203-275A 250-275±0.009mm£113.63 4-5 days
3203-300A 275-300±0.009mm£120.52 4-5 days

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