Please log in here to access all benefits, including promotional discounts and faster checkouts.

175-200 7-8" IP65 Digital Outside Micrometer - 3101 Series (Insize)

SKU:3101-200A

The 175-200 7-8" IP65 Digital Outside Micrometer from Insize is a rugged, water-resistant tool designed for precise external measurements in challenging environments. Built to withstand coolant, ... Read more ↓
Range (mm)175-200
Range (Inch)7-8
Setting Ring75mm (included)
Extension Rod150mm
l209.5
a12
View all specifications ↓
Download Cutting Data
£337.46
Prices shown ex. VAT
4–5 days estimated lead time — subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The 175-200 7-8" IP65 Digital Outside Micrometer from Insize is a rugged, water-resistant tool designed for precise external measurements in challenging environments. Built to withstand coolant, oil, and wash-downs, it delivers fast, repeatable readings with a clear digital display. It’s a reliable choice for machinists, inspectors, and workshop professionals who need accurate results without downtime.

With carbide measuring faces for extended durability, a built-in ratchet for consistent measuring pressure, and a spherical anvil for versatile contact, this micrometer stays accurate and repeatable project after project. It also supports data output with optional accessories for seamless data capture, and setting standards are included for quick setup across common ranges (except 0-25 mm / 0-1").

  • IP65 waterproof design: Protects the electronics and measuring surfaces from water, coolant, and dust, enabling reliable use in wet workshops and on production floors.
  • High-resolution digital readout: 0.001 mm / 0.00005" resolution with mm/inch conversion for fast, precise readings and easy data sharing.
  • Durable carbide faces with ratchet and spherical anvil: Delivers wear-resistant performance and repeatable measurements across a range of part geometries, with versatile contact for real-world applications.

This micrometer streamlines your workflow by delivering quick, dependable measurements in demanding environments, reducing parallax errors with a clear display, and enabling straightforward data capture through optional accessories. The combination of rugged construction, precise readings, and flexible data options helps you improve inspection efficiency, minimize rework, and consistently hit tolerance targets across the shop floor.

Range (mm) 175-200
Range (Inch) 7-8
Setting Ring 75mm (included)
Extension Rod 150mm
l 209.5
a 12
No Measuring Heads 4
No Setting Rings 2
b 107
c 5.5
Accuracy ±0.004mm
Resolution 0.001mm/0.00005
Read Out Digital
IP Rating IP65
mm or Inch mm|inch
Data Output Yes
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.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
Buying experience
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.
Jeremy

Full Range: IP65 Digital Outside Micrometers - 3101 Series (Insize)

View full collection →

You are viewing 3101-200A. Click any other SKU to view its full details.

Product SKURange (mm)Range (Inch)AccuracyPriceStock Order
3101-25A 0-250-1±0.002mm£156.10 4-5 days
3101-50A 25-501-2±0.002mm£199.72 4-5 days
3101-75A 50-752-3±0.003mm£218.09 4-5 days
3101-100A 75-1003-4±0.003mm£243.34 4-5 days
3101-125A 100-1254-5±0.003mm£285.81 4-5 days
3101-150A 125-1505-6±0.003mm£297.29 4-5 days
3101-175A 150-1756-7±0.004mm£311.06 4-5 days
3101-200A Viewing175-2007-8±0.004mm£337.46 4-5 days
3101-225A 200-2258-9±0.005mm£366.16 4-5 days
3101-275A 250-27510-11±0.006mm£412.07 4-5 days
3101-250A 225-2509-10±0.005mm£392.56 4-5 days
3101-300A 275-30011-12±0.006mm£457.98 4-5 days