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3-4" Imperial Blade Micrometer - 3232 Series (Insize)
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Description
The 3-4" Imperial Blade Micrometer from Insize (3232 Series) is a precision tool designed to accurately measure groove diameters in shafts and their keyways. With a clear 0.0001 inch graduation, it delivers fast, repeatable readings, making it a reliable companion for machinists, inspectors, engineers, and DIY enthusiasts alike.
Designed for dependable shop use, this micrometer features a non-rotating spindle to keep measurements aligned, a ratchet stop to apply consistent force, and included setting standards (except 0-25mm) to speed accurate zeroing. It supports measurements up to 8 inches, offering versatility across a wide range of parts and applications.
- Non-rotating spindle: Maintains spindle alignment during measurement, reducing errors when checking groove diameters in shafts and keyways.
- 0.0001 inch graduation: Provides high-resolution readings so you can detect even small differences in groove sizes with confidence.
- Includes setting standards and ratchet stop: Enables quick zeroing and consistent measuring pressure, delivering repeatable results and minimizing downtime.
Whether you're in a production line, a repair shop, or working on a precise project at home, this blade micrometer helps you verify fits quickly, improve workflow, and achieve reliable, repeatable results across measurements of groove diameters and keyways.
Part Numbers
- Protool Part Number
- 3232-4
- 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.
Full Range: Imperial Blade Micrometers - 3232 Series (Insize)
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