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50-75mm Metric Outside Micrometer - 3203 Series (Insize)
| Range (mm) | 50-75 |
| Setting Ring | 287.5mm (optional) |
| l | 82 |
| a | 15 |
| b | 49 |
| Accuracy | ±0.005mm |
Learn more about Klarna
The Insize 3203 Outside Micrometer is a precise metric tool designed to measure external dimensions with consistent, on-spec results. It’s built for daily use in machine shops, workshops, and QC labs, delivering reliable readings when it matters most. The micrometer features carbide measuring faces for longer tool life and is supplied with setting standards to help you calibrate quickly and accurately (except for the 0-25 mm range).
- Carbide measuring faces for durability: Carbide faces resist wear from routine use and tough materials, helping the micrometer maintain accuracy and extend tool life in busy shops.
- 0.01 mm graduation for precise readings: Fine graduation ensures easy, repeatable measurements and tighter tolerances without guesswork, boosting confidence in every measurement.
- Includes setting standards for fast setup: Comes with calibration setting standards (except 0-25 mm) to speed up initial setup and keep measurements reliable right out of the box.
Designed for engineers, machinists, inspectors, and hobbyists alike, this micrometer helps streamline measurement workflows, reduce downtime, and improve consistency across parts. Its robust construction and clear graduations support accurate QC, precise assembly, and dependable performance in everyday workshop tasks.
| Range (mm) | 50-75 |
| Setting Ring | 287.5mm (optional) |
| l | 82 |
| a | 15 |
| b | 49 |
| Accuracy | ±0.005mm |
| Read Out | Analogue |
| mm or Inch | mm |
| Data Output | No |
| Individual or Set | Individual |
| Graduation | 0.01mm |
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: Metric Outside Micrometers - 3203 Series (Insize)
View full collection →You are viewing 3203-75A. Click any other SKU to view its full details.
| Product SKU | Range (mm) | Accuracy | Price | Stock | Order |
|---|---|---|---|---|---|
| 3203-25A | 0-25 | ±0.004mm | £24.91 | 4-5 days | |
| 3203-50A | 25-50 | ±0.004mm | £27.32 | 4-5 days | |
| 3203-75A Viewing | 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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