25-30mm 0.98-1.18" Three Point Internal Bore Micrometer - 3227 Series (Insize)

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25-30mm 0.98-1.18" Three Point Internal Bore Micrometer - 3227 Series (Insize)

SKU:3227-30

Specification

Range (mm)	25-30
Range (inch)	0.98-1.18
Setting Ring	25mm (included)
b	8
Accuracy	Â±0.004mm
Graduation	0.03mm

£285.91

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4–5 days estimated lead time — subject to availability

Free delivery over £50 ex VAT

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01732 887334

Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The Insize 3227 Internal 3‑Point Bore Micrometer is a precision instrument designed for measuring internal diameters with confidence. Featuring a three‑point contact system, carbide measuring faces, and a ratchet stop, it delivers repeatable, wear‑resistant performance across frequent measurements. This tool is ideal for engineers, machinists, quality inspectors, and hobbyists who need reliable bore checks.

Three‑point internal measuring design: Ensures stable, even contact with bore walls for accurate, repeatable readings across cylindrical interiors.
Carbide measuring faces with ratchet stop: Delivers long wear life and consistent pressure, protecting both the instrument and the workpiece while reducing measurement variability.
Broad range up to 300 mm with 0.005 mm graduation (setting ring included): Covers a wide variety of bore sizes with precise increments, and the included setting ring enables quick, reliable zeroing between measurements.

This bore micrometer is built for dependable performance in daily shop and inspection work, helping you streamline workflows, minimize rework, and achieve tighter tolerances with confidence. The combination of durable carbide faces, a precise 0.005 mm graduation, and the convenient setting ring makes it a reliable choice for demanding measurement tasks.

Range (mm)	25-30
Range (inch)	0.98-1.18
Setting Ring	25mm (included)
b	8
Accuracy	Â±0.004mm
Graduation	0.03mm
Read Out	Analogue
IP Rating	IP65
mm or Inch	mm\|inch
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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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.

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★★★★★

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: Three Point Internal Bore Micrometers - 3227 Series (Insize)

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You are viewing 3227-30. Click any other SKU to view its full details.

Product SKU	Metric Range (mm)	Metric Range (Inch)	Ip Rating	mm or Inch	Price	Stock

3227-8	46240	0.24-0.31	IP65	mm\|inch	£273.39	4-5 days
3227-10	46303	0.31-0.39	IP65	mm\|inch	£273.39	4-5 days
3227-12	46366	0.39-0.47	IP65	mm\|inch	£273.39	4-5 days
3227-16	42705	0.47-0.63	IP65	mm\|inch	£219.13	4-5 days
3227-20	16-20	0.63-0.79	IP65	mm\|inch	£219.13	4-5 days
3227-25	20-25	0.79-0.98	IP65	mm\|inch	£285.91	4-5 days
3227-30 Viewing	25-30	0.98-1.18	IP65	mm\|inch	£285.91	4-5 days
3227-40	30-40	1.18-1.57	IP65	mm\|inch	£325.57	4-5 days
3227-50	40-50	1.57-1.97	IP65	mm\|inch	£354.78	4-5 days
3227-63	50-63	1.97-2.48	IP65	mm\|inch	£393.39	4-5 days
3227-75	62-75	2.44-2.95	IP65	mm\|inch	£408.00	4-5 days
3227-88	75-88	2.95-3.46	IP65	mm\|inch	£427.83	4-5 days
3227-100	87-100	3.43-3.94	IP65	mm\|inch	£449.74	4-5 days
3227-125	100-125	3.94-4.92	IP65	mm\|inch	£563.48	4-5 days
3227-150	125-150	4.92-5.91	IP65	mm\|inch	£636.52	4-5 days
3227-175	150-175	5.91-6.89	IP65	mm\|inch	£705.39	4-5 days
3227-200	175-200	6.89-7.87	IP65	mm\|inch	£814.96	4-5 days
3227-225	200-225	7.87-8.86	IP65	mm\|inch	£1,039.30	4-5 days
3227-250	225-250	8.86-9.84	IP65	mm\|inch	£1,173.91	4-5 days
3227-275	250-275	9.84-10.83	IP65	mm\|inch	£1,361.74	4-5 days
3227-300	275-300	10.83-11.81	IP65	mm\|inch	£1,581.91	4-5 days