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8-9" Imperial Outside Micrometer - 3203 Series (Insize)
| Range (Inch) | 8-9 |
| Setting Ring | 287.5mm (optional) |
| l | 9.213 |
| a | 0.764 |
| b | 5.118 |
| Accuracy | ±.00031 |
Learn more about Klarna
Meet the Insize 3203 Imperial Outside Micrometer—a precise tool for measuring external dimensions with confidence. Ideal for engineers, machinists, quality teams, buyers, tradespeople, and hobbyists, it delivers reliable readings quickly to keep production and inspection moving.
This best-selling micrometer features carbide measuring faces for long life in busy shops and a 0.0001" graduation for capturing tiny tolerances. It covers sizes up to 12 inches and ships with setting standards for fast, repeatable calibration (except for the 0-1" range).
- 0.0001" graduation: Enables precise external measurements and quick readings for tight tolerances.
- Carbide measuring faces: Increased durability and stable readings in everyday workshop use, resisting wear from hard surfaces.
- Wide range up to 12": Handles a broad set of parts and assemblies, with setting standards included for fast calibration out of the box (except 0-1").
With the Insize 3203 outside micrometer, you gain reliable, repeatable measurements that streamline inspection and assembly workflows. The fine graduation and durable carbide faces reduce rework and downtime, while the included calibration standards help you achieve consistent part quality across projects—whether in a high-volume shop, a design office, or a home workshop.
| Range (Inch) | 8-9 |
| Setting Ring | 287.5mm (optional) |
| l | 9.213 |
| a | 0.764 |
| b | 5.118 |
| Accuracy | ±.00031 |
| Read Out | Analogue |
| mm or Inch | inch |
| Data Output | No |
| Individual or Set | Individual |
| Graduation | 0.0001 |
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: Imperial Outside Micrometers - 3203 Series (Insize)
View full collection →You are viewing 3203-9A. Click any other SKU to view its full details.
| Product SKU | Range (Inch) | Accuracy | Price | Stock | Order |
|---|---|---|---|---|---|
| 3203-1A | 0-1 | ±.00015 | £27.89 | 4-5 days | |
| 3203-2A | 1-2 | ±.00015 | £31.45 | 4-5 days | |
| 3203-3A | 2-3 | ±.00020 | £36.96 | 4-5 days | |
| 3203-4A | 3-4 | ±.00020 | £41.32 | 4-5 days | |
| 3203-5A | 4-5 | ±.00025 | £54.75 | 4-5 days | |
| 3203-6A | 5-6 | ±.00025 | £62.10 | 4-5 days | |
| 3203-7A | 6-7 | ±.00028 | £81.04 | 4-5 days | |
| 3203-8A | 7-8 | ±.00028 | £84.94 | 4-5 days | |
| 3203-9A Viewing | 8-9 | ±.00031 | £91.60 | 4-5 days | |
| 3203-10A | 9-10 | ±.00031 | £102.16 | 4-5 days | |
| 3203-11A | 10-11 | ±.00035 | £113.18 | 4-5 days |
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