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

0-100mm Digital Outside Micrometer Set - 3109 Series

SKU:3109-1004A

The 0-100mm Digital Outside Micrometer Set from the 3109 Series delivers precise outside measurements with a clear digital readout, making it ideal for machinists, inspectors, and workshop profess... Read more ↓
Range (mm)0-100
Range (Inch)0-4
No Measuring Heads4
No Setting Rings2
View all specifications ↓
Download Cutting Data
£385.04
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

Description

The 0-100mm Digital Outside Micrometer Set from the 3109 Series delivers precise outside measurements with a clear digital readout, making it ideal for machinists, inspectors, and workshop professionals who value speed and reliability.

  • Measuring range: 0–100 mm outside measurement, designed for everyday machining and inspection tasks in tight spaces.
  • Resolution: 0.001 mm (0.00005 in) for quick, repeatable readings with fine detail where it matters.
  • Carbide measuring faces: hard-wearing faces that resist wear and maintain accuracy over time on a variety of materials.
  • Unit conversion: convenient mm/inch button to switch display units without re-zeroing, streamlining mixed-unit workflows.
  • ABS/INC and setup: supports Absolute and Incremental measurement modes with a dedicated set function for flexible use in different measurement scenarios.
  • Power and battery: LR44 battery with automatic power-off to extend battery life between uses and reduce downtime.
  • Included standards: Supplied with setting standards to facilitate fast, on-site calibration and verification.

With its digital readout, this micrometer minimizes parallax errors and speeds up calibration checks. The carbide faces provide durable, long-lasting performance on hardened workpieces, while the metric/imperial conversion and ABS/INC modes adapt to a wide range of measurement tasks. The compact case keeps the 0-100mm Digital Outside Micrometer Set organized for the shop floor or fieldwork, ready to deliver accurate measurements when precision matters most.

Part Numbers

Protool Part Number
3109-1004A
Brand
Insize
Category
Measuring Tool
Delivery

Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.

Returns

14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.

Technical Support

Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Trade Accounts

Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.

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.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Digital Outside Micrometers Set - 3109 Series

View full collection →

You are viewing 3109-1004A. Click any other SKU to view its full details.

Product SKURange (mm)Range (Inch)PriceStock Order
3109-753A 0-750-3£273.39 4-5 days
3109-1004A Viewing0-1000-4£385.04 4-5 days
3109-1506A 0-1500-6£659.48 4-5 days

Other sizes in this range

with tools we think you'll like
All 3 →