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50-75mm Point Type B Micrometer - 3230 Series (Insize)
| Range (mm) | 50-75 |
| Setting Ring | 75mm (included) |
| Extension Rod | 150mm |
| No Measuring Heads | 4 |
| No Setting Rings | 2 |
| Accuracy | ±0.005 |
Learn more about Klarna
The 50-75mm Point Type B Micrometer from Insize is a specialized precision tool designed to measure the web thickness of drills, small grooves, and keyways. As part of the 3230 Series, it delivers reliable, easy-to-read measurements with a fine 0.01 mm graduation, helping you verify tolerances quickly in metalworking, toolmaking, and maintenance tasks.
Built for daily shop use, this micrometer features carbide measuring faces to resist wear and a ratchet stop to ensure consistent pressure and repeatable readings. It is supplied with 60° setting standards to simplify setup and accurate data transfer (except for the 0–25 mm range). The 3230 Series is designed to stay dependable under routine use and accommodates sizes up to 100 mm.
- 0.01 mm graduation: Delivers precise, repeatable readings for accurate web thickness measurements of drills, grooves, and keyways, helping you avoid rework.
- Carbide-tipped measuring faces: Hardened tips resist wear, extending tool life and maintaining measurement accuracy in busy work environments.
- Ratchet stop and 60° setting standards: Provide consistent force for reliable results and quick, confident setup and data transfer (except the 0–25 mm range).
This micrometer supports streamlined workflows by delivering dependable measurements, reducing downtime from wear or setup inconsistencies, and helping you achieve precise fits in tooling and maintenance applications. With its robust construction and thoughtful features, it’s a trustworthy addition to any machine shop, inspection bench, or maintenance toolkit.
| Range (mm) | 50-75 |
| Setting Ring | 75mm (included) |
| Extension Rod | 150mm |
| No Measuring Heads | 4 |
| No Setting Rings | 2 |
| Accuracy | ±0.005 |
| 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 3230-75BA. 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 | 25-50 | ±0.004 | £105.37 | 4-5 days | |
| 3230-75BA Viewing | 50-75 | ±0.005 | £114.78 | 4-5 days |
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