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25-50mm Point Type A Micrometer - 3230 Series (Insize)
| Range (mm) | 25-50 |
| Setting Ring | 75mm (included) |
| Extension Rod | 150mm |
| No Measuring Heads | 4 |
| No Setting Rings | 2 |
| Accuracy | ±0.004 |
Learn more about Klarna
The 25-50mm Point Type A Micrometer from Insize 3230 Series is a precision instrument designed to measure the web thickness of drills, small grooves and keyways with confidence. Its 0.01 mm graduations deliver clear, repeatable readings, making it a reliable choice for engineers, machinists, hobbyists, and shop technicians alike.
Built for durability in busy workshops, this micrometer features carbide measuring faces for wear resistance and a ratchet stop to ensure consistent measuring force. It is supplied with 60° setting standards for quick, repeatable setups (except for 0-25 mm sizes), and offers a measuring range up to 100 mm to cover a wide range of components.
- Precise 0.01 mm graduation: Delivers clear, repeatable readings of web thickness for drills, grooves, and keyways, enabling accurate fit and tolerance checks.
- Durable carbide tips with ratchet stop: Uses wear‑resistant surfaces and controlled force for consistent measurements over time, reducing rework and downtime.
- Wide range with 60° setting standards: Supports measurements from smaller to larger features (up to 100 mm) with quick setup for reliable results across multiple applications (except 0-25 mm).
This micrometer helps streamline inspection and assembly tasks by delivering dependable measurements quickly. The combination of carbide faces and a ratchet stop protects accuracy in everyday use, while the broad measuring range and included setting standards expand its versatility for a variety of drilling, grooving, and keyway applications.
| Range (mm) | 25-50 |
| Setting Ring | 75mm (included) |
| Extension Rod | 150mm |
| No Measuring Heads | 4 |
| No Setting Rings | 2 |
| Accuracy | ±0.004 |
| Read Out | Analogue |
| mm or Inch | mm |
| Data Output | No |
| Individual or Set | Individual |
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.
Full Range: Point Type A Micrometers - 3230 Series (Insize)
View full collection →You are viewing 3230-50A. Click any other SKU to view its full details.
| Product SKU | Range (mm) | Accuracy | Price | Stock | Order |
|---|---|---|---|---|---|
| 3230-25A | 0-25 | ±0.004 | £97.11 | 4-5 days | |
| 3230-100A | 75-100 | ±0.005 | £133.15 | 4-5 days | |
| 3230-75A | 50-75 | ±0.005 | £114.78 | 4-5 days | |
| 3230-50BA | 25-50 | ±0.004 | £105.37 | 4-5 days | |
| 3230-25BA | 0-25 | ±0.004 | £97.11 | 4-5 days | |
| 3230-50A Viewing | 25-50 | ±0.004 | £105.37 | 4-5 days | |
| 3230-75BA | 50-75 | ±0.005 | £114.78 | 4-5 days |
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