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75-100mm Point Type A Micrometer - 3230 Series (Insize)

SKU:3230-100A

The Insize 75-100 mm Point Type A Micrometer from the 3230 Series is a precision instrument designed to measure the web thickness of drills, as well as small grooves and keyways. With a 75–100 mm... Read more ↓
Range (mm)75-100
Setting Ring75mm (included)
Extension Rod150mm
No Measuring Heads4
No Setting Rings2
Accuracy±0.005
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£133.15
Prices shown ex. VAT
4–5 days estimated lead time — subject to availability
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The Insize 75-100 mm Point Type A Micrometer from the 3230 Series is a precision instrument designed to measure the web thickness of drills, as well as small grooves and keyways. With a 75–100 mm measuring range and 0.01 mm graduation, this micrometer provides accurate readings for common metalworking and inspection tasks.

Built for durability in busy shops, it features carbide measuring faces for wear resistance and a ratchet stop to ensure consistent preload and repeatable results. Supplied with 60° setting standards (except 0–25 mm), this tool is ready to deliver fast, reliable baselines and quick setups for a wide range of measurements.

  • 75–100 mm measuring range: Eliminates the need to swap tools when checking web thickness on drills, grooves, and keyways, speeding up setup and reducing tool changes.
  • 0.01 mm graduation with ratchet stop: Delivers precise, repeatable readings by maintaining consistent measuring force and minimizing user-induced variation.
  • Carbide measuring faces & 60° setting standards: Offers long wear life in demanding environments, while the included 60° standards enable fast, accurate setup (except for 0–25 mm).

This micrometer supports efficient workflows in manufacturing, maintenance, and quality control by delivering reliable measurements, reducing rework, and simplifying daily tasks. Its broad range, durable construction, and precise graduations make it a dependable choice for engineers, machinists, and inspectors who value consistent results and workflow confidence.

Range (mm) 75-100
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.

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Staff are very helpful and interested in providing a good service making us the customer feel valued.
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Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
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Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
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Full Range: Point Type A Micrometers - 3230 Series (Insize)

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You are viewing 3230-100A. Click any other SKU to view its full details.

Product SKURange (mm)AccuracyPriceStock Order
3230-25A 0-25±0.004£97.11 4-5 days
3230-100A Viewing75-100±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 50-75±0.005£114.78 4-5 days