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Carmex Carbide Tiny Tools - Back Turning Tool (MXR) - Grade BXC - 4.1mm Min Diameter x 22mm Reach
| Application | Back Turning (MXR) |
| Minimum Diameter | 4.1 |
| Reach (L1) | 22 |
| Radius (R) | 0.15 |
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Description
The Carmex Carbide Tiny Tools Back Turning Tool (MXR) is a precision carbide cutting tool designed for small turning tasks. Its specialized back-turning geometry enables accurate rear-surface finishing on tiny workpieces with clean, repeatable results. Crafted from premium-grade carbide (Grade BXC) for exceptional hardness and wear resistance, it’s built to withstand the demands of small-part production. With a min diameter of 4.1 mm and a reach of 22 mm, it fits into tight spaces while preserving cutting rigidity.
Engineered for reliability in workshop environments, this compact tool is ideal for engineers, machinists, hobbyists, and manufacturers who value precise finishing and dependable performance in limited-access areas.
- Back-turning optimization for backside surfaces: The MXR geometry is designed to deliver accurate, smooth rear-surface finishes on small parts, promoting repeatable results with fewer passes.
- Compact 4.1 mm min diameter with 22 mm reach: Lets you access tight internal features and deep pockets without compromising rigidity or surface quality.
- Grade BXC carbide for durability and wear resistance: Delivers long tool life and steady performance in challenging materials, reducing downtime and replacement frequency.
With its back-turning precision, compact reach, and durable carbide, this tool helps you finish small parts faster, improve workflow, and consistently achieve high-quality rear surfaces—enhancing overall productivity and confidence on every job.
Part Numbers
- Protool Part Number
- MXR4R0.15L22BXC
- Brand
- Carmex
- Category
- Tiny Tool Inserts
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: Carmex Carbide Tiny Tools - Back Turning - Grade BXC (MXR)
View full collection →You are viewing MXR4R0.15L22BXC. Click any other SKU to view its full details.
| Product SKU | Minimum Diameter | Reach | Radius | Max Back Turn Depth | Grade | Holder | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| MXR4R0.15L10BXC | 4.1 | 10 | 0.15 | 0.8 | BXC | SIM****H4 | £24.43 | 5 days | |
| MXR4R0.15L15BXC | 4.1 | 15 | 0.15 | 0.8 | BXC | SIM****H4 | £24.60 | 5 days | |
| MXR4R0.1L10BXC | 3.1 | 10 | 0.1 | 0.5 | BXC | SIM****H4 | £24.43 | In Stock | |
| MXR5R0.2L15BXC | 5.1 | 15 | 0.2 | 1 | BXC | SIM****H5 | £24.93 | In Stock | |
| MXR5R0.2L22BXC | 5.1 | 22 | 0.2 | 1 | BXC | SIM****H5 | £25.18 | In Stock | |
| MXR6R0.2L15BXC | 6.1 | 15 | 0.2 | 1.8 | BXC | SIM****H6 | £25.48 | 5 days | |
| MXR6R0.2L22BXC | 6.1 | 22 | 0.2 | 1.8 | BXC | SIM****H6 | £25.68 | 5 days | |
| MXR4R0.15L22BXC Viewing | 4.1 | 22 | 0.15 | 0.8 | BXC | SIM****H4 | £25.85 | 5 days | |
| MXR7R0.2L30BXC | 7.1 | 30 | 0.20 | 2.5 | BXC | SIM****H7 | £32.60 | 5 days | |
| MXL4R0.15L10BXC | 4.1 | 10 | 0.15 | 0.8 | BXC | SIM****H4 | £24.43 | 5 days | |
| MXL4R0.15L15BXC | 4.1 | 15 | 0.15 | 0.8 | BXC | SIM****H4 | £24.60 | 5 days | |
| MXL4R0.15L22BXC | 4.1 | 22 | 0.15 | 0.8 | BXC | SIM****H4 | £21.85 | 5 days | |
| MXL4R0.1L10BXC | 3.1 | 10 | 0.1 | 0.5 | BXC | SIM****H4 | £24.43 | 5 days | |
| MXL5R0.2L15BXC | 5.1 | 15 | 0.2 | 1 | BXC | SIM****H5 | £24.93 | 5 days | |
| MXL5R0.2L22BXC | 5.1 | 22 | 0.2 | 1 | BXC | SIM****H5 | £25.18 | 5 days | |
| MXL6R0.2L15BXC | 6.1 | 15 | 0.2 | 1.8 | BXC | SIM****H6 | £25.48 | 5 days | |
| MXL6R0.2L22BXC | 6.1 | 22 | 0.2 | 1.8 | BXC | SIM****H6 | £25.68 | 5 days | |
| MXL7R0.2L30BXC | 7.1 | 30 | 0.20 | 2.5 | BXC | SIM****H7 | £27.55 | 5 days |
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