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75-100mm Metric Outside Micrometer - 3203 Series (Insize)
| Range (mm) | 75-100 |
| Setting Ring | 287.5mm (optional) |
| l | 107 |
| a | 15 |
| b | 60 |
| Accuracy | ±0.005mm |
Learn more about Klarna
The 75-100 mm Metric Outside Micrometer from Insize, part of the 3203 Series, is a precision tool designed to measure external dimensions with quick, repeatable results. It’s a reliable choice for engineers, machinists, inspectors, buyers, and hobbyists who need accurate readings on parts such as shafts, pins, and housings.
Graduated in 0.01 mm increments and featuring carbide measuring faces, this micrometer resists wear in busy workshop environments to extend tool life and maintain accuracy. It’s supplied with setting standards (except for the 0-25 mm range), and its measurement capability extends up to 300 mm, providing broad coverage for everyday manufacturing tasks.
- 0.01 mm Graduation: Clear, fine increments for quick, precise dimension checks and tight tolerance verification.
- Carbide Measuring Faces: Hardened contact surfaces that resist wear, delivering long-lasting accuracy in routine use.
- Setting Standards Included: Comes with calibrated setting standards (except 0–25 mm) to speed setup and ensure repeatable zeroing across measurements.
With its precise graduation, durable carbide faces, and convenient setting standards, this micrometer supports fast, confident measurements, reduces downtime, and delivers reliable results across a broad range of external dimensions up to 300 mm.
| Range (mm) | 75-100 |
| Setting Ring | 287.5mm (optional) |
| l | 107 |
| a | 15 |
| b | 60 |
| 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 3203-100A. 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 | 50-75 | ±0.005mm | £35.58 | 4-5 days | |
| 3203-100A Viewing | 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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