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

Omega Products Standard Reduction Sleeve - Slotted Boring Bar - Outside Diameter 25mm - Inside Diameter 16mm
Learn more about Klarna
Description
Omega Products Standard Reduction Sleeve for Slotted Boring Bars is a precision adapter designed to deliver reliable, repeatable performance in metalworking and machining tasks. It bridges between your slotted boring bar and tooling components, helping you achieve tight tolerances and consistent results. Ideal for engineers, technicians, and hobbyists who value accuracy with straightforward setup.
With an outside diameter of 25 mm and an inside diameter of 16 mm, this reduction sleeve ensures a secure, true-fitting interface. Crafted from high-quality materials, it is built to endure daily workshop use and maintain precise alignment through many cycles of setup and cutting. The slotted design adds versatility, making it compatible with a range of slotted boring bars for flexible configurations.
- Precise, repeatable fit for slotted boring bars: The design delivers accurate alignment and consistent results, reducing setup time and scrap on each job.
- Durable, high-quality materials: Built to withstand daily shop use, resist wear, and hold tolerance over long service life.
- Versatile and easy to match: The slotted sleeve works with a range of slotted boring bars, simplifying inventory and enabling quick tool changes.
This reduction sleeve helps you streamline setups, minimize runout, and improve surface finish across a variety of machining projects. By delivering a solid, dependable interface between your boring bar and tooling, it supports faster changeovers, steadier cuts, and more predictable results—every time you reach for it in the shop.
Part Numbers
- Protool Part Number
- OM20208
- Brand
- Omega
- Category
- Boring Bar Sleeve
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
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: Omega Products Standard Reduction Sleeves - Slotted Boring Bar
View full collection →You are viewing OM20208. Click any other SKU to view its full details.
| Product SKU | Outside Diameter | Inside Diameter | D1 | L1 | L2 | L3 | L4 | W | Form | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OM20201 | 16 | 10 | 22 | 5 | 40 | 32 | 3 | 7 | A | £14.91 | In Stock | |
| OM20204 | 20 | 12 | 26 | 5 | 50 | 42 | 3 | 9 | A | £16.07 | In Stock | |
| OM19188 | 25 | 14 | 32 | 5 | 50 | 42 | 3 | 10 | A | £18.35 | In Stock | |
| OM20208 Viewing | 25 | 16 | 32 | 5 | 50 | 42 | 3 | 10 | A | £18.35 | In Stock | |
| OM19190 | 25 | 18 | 32 | 5 | 50 | 42 | 3 | 10 | A | £18.35 | In Stock | |
| OM19191 | 25 | 20 | 32 | 5 | 50 | 42 | 3 | 10 | A | £18.35 | In Stock | |
| OM20212 | 32 | 16 | 38 | 5 | 60 | 52 | 3 | 10 | A | £20.64 | In Stock | |
| OM20213 | 32 | 20 | 38 | 5 | 60 | 52 | 3 | 10 | A | £20.64 | In Stock | |
| OM20214 | 32 | 25 | 38 | 5 | 60 | 52 | 3 | 10 | A | £20.64 | In Stock | |
| OM20218 | 40 | 16 | 48 | 5 | 85 | 77 | 2 | 12 | A | £22.95 | In Stock | |
| OM20219 | 40 | 20 | 48 | 5 | 85 | 77 | 2 | 12 | A | £22.95 | In Stock | |
| OM20220 | 40 | 25 | 48 | 5 | 85 | 77 | 2 | 12 | A | £22.95 | In Stock | |
| OM20221 | 40 | 32 | 48 | 5 | 85 | 77 | 2 | 12 | A | £22.95 | In Stock | |
| OM20222 | 50 | 16 | 58 | 8 | 92 | 80 | 4 | 12 | A | £67.68 | In Stock | |
| OM20223 | 50 | 20 | 58 | 8 | 92 | 80 | 4 | 12 | A | £67.68 | In Stock | |
| OM20224 | 50 | 25 | 58 | 8 | 92 | 80 | 4 | 12 | A | £67.68 | In Stock | |
| OM20225 | 50 | 32 | 58 | 8 | 92 | 80 | 4 | 12 | A | £67.68 | In Stock | |
| OM20226 | 50 | 40 | 58 | 8 | 92 | 80 | 4 | 12 | A | £67.68 | In Stock |
No products match your filters.


