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Carmex Carbide Tiny Tool - Grooving - MGR - BMK Grade - Minimum Diameter 4.1mm x 1mm Groove Width x 22mm Reach
| Application | Grooving (MGR) |
| Minimum Diameter | 4.1 |
| Groove Width (B) | 1 |
| Groove Depth (H) | 1 |
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Description
The Carmex Carbide Tiny Tools - Small Grooving Tool (MGR) is a precision cutting tool designed for small grooving applications. Built from premium BMK-grade carbide, it delivers dependable performance when creating micro grooves on tiny parts. Its compact geometry and tailored tip design let you access tight features with confidence. Key specifics include a minimum diameter of 4.1 mm, a groove width of 1 mm, and a reach of 22 mm, making it ideal for engineers, machinists, hobbyists, and production environments that demand tight tolerances on miniature components.
Designed for broad machine compatibility, this tiny grooving tool combines stiffness, wear resistance, and precision in a single carbide body. Whether you’re producing micro grooves or finishing delicate features, it maintains consistent depth control and clean groove walls with each pass.
- Small-diameter precision for micro grooves: With a 4.1 mm minimum diameter, 1 mm groove width, and 22 mm reach, this tool accesses tight slots and narrow features to create accurate grooves with minimal setup and reduced deflection.
- Premium carbide for durability and finish: BMK-grade carbide delivers exceptional wear resistance and long tool life, helping you maintain sharp cutting edges and consistent groove quality across production runs.
- Broad machine compatibility: Designed to work with a wide range of machines and systems, ensuring reliable performance in diverse shop environments and reducing compatibility concerns when equipment changes.
By choosing the Carmex Tiny Tools grooving tool, you gain reliable, repeatable groove outcomes on small parts, faster setup in tight spaces, and a reduction in rework thanks to stable depth control and clean finishes. The combination of compact reach, precise geometry, and durable carbide helps streamline micro-grooving workflows—from prototyping to production—so you can deliver precise parts with confidence and efficiency.
Part Numbers
- Protool Part Number
- MGR4B1.0L22BMK
- 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 - Grooving - Grade BMK (MGR)
View full collection →You are viewing MGR4B1.0L22BMK. Click any other SKU to view its full details.
| Product SKU | Minimum Diameter | Groove Width | Groove Depth | Reach | Grade | Holder | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| MGR2B0.5L10BMK | 2.1 | 0.5 | 0.5 | 10 | BXC | SIM****H4 | £28.00 | 5 days | |
| MGR3B0.5L10BMK | 2.1 | 0.5 | 0.5 | 10 | BMK | SIM****H3 | £26.80 | 5 days | |
| MGR3B0.7L10BMK | 3.1 | 0.5 | 0.5 | 10 | BMK | SIM****H3 | £26.03 | 5 days | |
| MGR4B0.5L10BMK | 3.1 | 0.5 | 0.6 | 10 | BMK | SIM****H3 | £26.80 | In Stock | |
| MGR4B0.5L15BMK | 4.1 | 0.5 | 0.5 | 15 | BMK | SIM****H4 | £28.50 | 5 days | |
| MGR4B0.79L15BMK | 4.1 | 0.5 | 0.5 | 15 | BMK | SIM****H4 | £28.50 | 5 days | |
| MGR4B0.79L22BMK | 4.1 | 0.79 | 0.9 | 22 | BMK | SIM****H4 | £29.90 | 5 days | |
| MGR4B0.7L10BMK | 4.1 | 0.79 | 0.9 | 10 | BMK | SIM****H4 | £26.80 | In Stock | |
| MGR4B1.0L10BMK | 4.1 | 0.7 | 0.6 | 10 | BMK | SIM****H4 | £26.93 | 5 days | |
| MGR4B1.0L15BMK | 4.1 | 1 | 1 | 15 | BMK | SIM****H4 | £28.50 | 5 days | |
| MGR4B1.0L22BMK Viewing | 4.1 | 1 | 1 | 22 | BMK | SIM****H4 | £29.90 | 5 days | |
| MGR4B1.5L10BMK | 4.1 | 1 | 1 | 10 | BMK | SIM****H4 | £26.93 | In Stock | |
| MGR4B1.5L15BMK | 4.1 | 1.5 | 1 | 15 | BMK | SIM****H4 | £28.50 | 5 days | |
| MGR4B1.5L22BMK | 4.1 | 1.5 | 1 | 22 | BMK | SIM****H4 | £29.90 | 5 days | |
| MGR5B0.79L15BMK | 4.1 | 1.5 | 1 | 15 | BMK | SIM****H4 | £27.35 | 5 days | |
| MGR5B0.79L22BMK | 5.1 | 0.79 | 1 | 22 | BMK | SIM****H5 | £29.05 | 5 days | |
| MGR5B1.0L15BMK | 5.1 | 0.79 | 1 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MGR5B1.0L22BMK | 5.1 | 1 | 1.2 | 15 | BMK | SIM****H5 | £29.05 | In Stock | |
| MGR5B1.19L15BMK | 5.1 | 1 | 1.2 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MGR5B1.19L22BMK | 5.1 | 1.19 | 1.2 | 22 | BMK | SIM****H5 | £29.05 | 5 days | |
| MGR5B1.59L15BMK | 5.1 | 1.19 | 1.2 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MGR5B1.59L22BMK | 5.1 | 1.59 | 1.2 | 22 | BMK | SIM****H5 | £29.05 | 5 days | |
| MGR5B1.5L15BMK | 5.1 | 1.59 | 1.2 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MGR5B1.5L22BMK | 5.1 | 1.5 | 1.2 | 22 | BMK | SIM****H5 | £29.05 | In Stock | |
| MGR5B2.0L15BMK | 5.1 | 1.5 | 1.2 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MGR5B2.0L22BMK | 5.1 | 2 | 1.2 | 22 | BMK | SIM****H5 | £29.05 | In Stock | |
| MGR6B0.79L17BMK | 5.1 | 2 | 1.2 | 17 | BMK | SIM****H5 | £30.75 | 5 days | |
| MGR6B0.79L23BMK | 6.1 | 0.79 | 1.8 | 23 | BMK | SIM****H6 | £32.98 | 5 days | |
| MGR6B1.0L15BMK | 6.1 | 0.79 | 1.8 | 15 | BMK | SIM****H6 | £28.00 | 5 days | |
| MGR6B1.0L17BMK | 6.1 | 1 | 1.4 | 17 | BMK | SIM****H6 | £30.75 | 5 days | |
| MGR6B1.0L22BMK | 6.1 | 1 | 1.8 | 22 | BMK | SIM****H6 | £29.95 | 5 days | |
| MGR6B1.19L17BMK | 6.1 | 1 | 1.4 | 17 | BMK | SIM****H6 | £30.75 | 5 days | |
| MGR6B1.19L23BMK | 6.1 | 1.19 | 1.8 | 23 | BMK | SIM****H6 | £32.98 | 5 days | |
| MGR6B1.59L17BMK | 6.1 | 1.19 | 1.8 | 17 | BMK | SIM****H6 | £30.75 | 5 days | |
| MGR6B1.59L23BMK | 6.1 | 1.59 | 1.8 | 23 | BMK | SIM****H6 | £32.98 | 5 days | |
| MGR6B1.5L15BMK | 6.1 | 1.59 | 1.8 | 15 | BMK | SIM****H6 | £28.00 | In Stock | |
| MGR6B1.5L17BMK | 6.1 | 1.5 | 1.4 | 17 | BMK | SIM****H6 | £30.75 | 5 days | |
| MGR6B1.5L22BMK | 6.1 | 1.5 | 1.8 | 22 | BMK | SIM****H6 | £29.95 | 5 days | |
| MGR6B1.5L23BMK | 6.1 | 1.5 | 1.4 | 23 | BMK | SIM****H6 | £32.98 | 5 days | |
| MGR6B2.0L15BMK | 6.1 | 1.5 | 1.8 | 15 | BMK | SIM****H6 | £28.00 | 5 days | |
| MGR6B2.0L17BMK | 6.1 | 2 | 1.4 | 17 | BMK | SIM****H6 | £30.75 | 5 days | |
| MGR6B2.0L22BMK | 6.1 | 2 | 1.8 | 22 | BMK | SIM****H6 | £29.95 | 5 days | |
| MGR6B2.0L23BMK | 6.1 | 2 | 1.4 | 23 | BMK | SIM****H6 | £32.98 | 5 days | |
| MGR7B1.0L15BMK | 6.1 | 2 | 1.8 | 15 | BMK | SIM****H6 | £32.93 | 5 days | |
| MGR7B1.0L22BMK | 7.1 | 1 | 2.5 | 22 | BMK | SIM****H7 | £32.93 | 5 days | |
| MGR7B1.0L30BMK | 7.1 | 1 | 2.5 | 30 | BMK | SIM****H7 | £36.18 | 5 days | |
| MGR7B1.19L22BMK | 7.1 | 1 | 2.5 | 22 | BMK | SIM****H7 | £32.98 | In Stock | |
| MGR7B1.19L30BMK | 7.1 | 1.19 | 2.5 | 30 | BMK | SIM****H7 | £36.18 | 5 days | |
| MGR7B1.59L22BMK | 7.1 | 1.59 | 2.5 | 22 | BMK | SIM****H7 | £32.98 | 5 days | |
| MGR7B1.59L30BMK | 7.1 | 1.59 | 2.5 | 30 | BMK | SIM****H7 | £36.18 | 5 days | |
| MGR7B1.5L15BMK | 7.1 | 1.59 | 2.5 | 15 | BMK | SIM****H7 | £32.93 | 5 days | |
| MGR7B1.5L22BMK | 7.1 | 1.5 | 2.5 | 22 | BMK | SIM****H7 | £32.93 | 5 days | |
| MGR7B1.5L30BMK | 7.1 | 1.5 | 2.5 | 30 | BMK | SIM****H7 | £36.18 | 5 days | |
| MGR7B2.0L15BMK | 7.1 | 1.5 | 2.5 | 15 | BMK | SIM****H7 | £32.93 | 5 days | |
| MGR7B2.0L22BMK | 7.1 | 2 | 2.5 | 22 | BMK | SIM****H7 | £32.93 | 5 days | |
| MGR7B2.0L30BMK | 7.1 | 2 | 2.5 | 30 | BMK | SIM****H7 | £36.18 | 5 days | |
| MGR8B1.0L22BMK | 7.1 | 2 | 2.5 | 22 | BMK | SIM****H7 | £33.55 | In Stock | |
| MGR8B1.5L22BMK | 8.1 | 1 | 1.7 | 22 | BMK | SIM****H8 | £33.55 | 5 days | |
| MGR8B2.0L22BMK | 8.1 | 1.5 | 1.7 | 22 | BMK | SIM****H8 | £33.55 | 5 days | |
| MGR8B2.38L15BMK | 8.1 | 2 | 2.6 | 15 | BMK | SIM****H8 | £33.55 | 5 days | |
| MGR8B2.38L22BMK | 8.1 | 2.38 | 2.6 | 22 | BMK | SIM****H8 | £33.55 | 5 days | |
| MGL2B0.5L10BMK | 2.1 | 0.5 | 0.5 | 10 | BXC | SIM****H4 | £23.65 | 5 days | |
| MGL3B0.5L10BMK | 2.1 | 0.5 | 0.5 | 10 | BMK | SIM****H3 | £22.63 | In Stock | |
| MGL3B0.7L10BMK | 3.1 | 0.5 | 0.5 | 10 | BMK | SIM****H3 | £26.03 | 5 days | |
| MGL4B0.5L10BMK | 3.1 | 0.5 | 0.6 | 10 | BMK | SIM****H3 | £26.80 | 5 days | |
| MGL4B0.5L15BMK | 4.1 | 0.5 | 0.5 | 15 | BMK | SIM****H4 | £24.10 | 5 days | |
| MGL4B0.79L15BMK | 4.1 | 0.5 | 0.5 | 15 | BMK | SIM****H4 | £24.10 | 5 days | |
| MGL4B0.79L22BMK | 4.1 | 0.79 | 0.9 | 22 | BMK | SIM****H4 | £25.28 | 5 days | |
| MGL4B0.7L10BMK | 4.1 | 0.79 | 0.9 | 10 | BMK | SIM****H4 | £22.63 | 5 days | |
| MGL4B1.0L10BMK | 4.1 | 0.7 | 0.6 | 10 | BMK | SIM****H4 | £26.93 | 5 days | |
| MGL4B1.0L15BMK | 4.1 | 1 | 1 | 15 | BMK | SIM****H4 | £28.50 | 5 days | |
| MGL4B1.0L22BMK | 4.1 | 1 | 1 | 22 | BMK | SIM****H4 | £25.28 | 5 days | |
| MGL4B1.5L10BMK | 4.1 | 1 | 1 | 10 | BMK | SIM****H4 | £26.93 | 5 days | |
| MGL4B1.5L15BMK | 4.1 | 1.5 | 1 | 15 | BMK | SIM****H4 | £24.10 | 5 days | |
| MGL4B1.5L22BMK | 4.1 | 1.5 | 1 | 22 | BMK | SIM****H4 | £25.28 | 5 days | |
| MGL5B0.79L15BMK | 4.1 | 1.5 | 1 | 15 | BMK | SIM****H4 | £23.13 | 5 days | |
| MGL5B0.79L22BMK | 5.1 | 0.79 | 1 | 22 | BMK | SIM****H5 | £24.55 | 5 days | |
| MGL5B1.0L15BMK | 5.1 | 0.79 | 1 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MGL5B1.0L22BMK | 5.1 | 1 | 1.2 | 15 | BMK | SIM****H5 | £29.05 | 5 days | |
| MGL5B1.19L15BMK | 5.1 | 1 | 1.2 | 15 | BMK | SIM****H5 | £23.13 | 5 days | |
| MGL5B1.19L22BMK | 5.1 | 1.19 | 1.2 | 22 | BMK | SIM****H5 | £24.55 | 5 days | |
| MGL5B1.59L15BMK | 5.1 | 1.19 | 1.2 | 15 | BMK | SIM****H5 | £23.13 | 5 days | |
| MGL5B1.59L22BMK | 5.1 | 1.59 | 1.2 | 22 | BMK | SIM****H5 | £24.55 | 5 days | |
| MGL5B1.5L15BMK | 5.1 | 1.59 | 1.2 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MGL5B1.5L22BMK | 5.1 | 1.5 | 1.2 | 22 | BMK | SIM****H5 | £29.05 | 5 days | |
| MGL5B2.0L15BMK | 5.1 | 1.5 | 1.2 | 15 | BMK | SIM****H5 | £27.35 | 5 days | |
| MGL5B2.0L22BMK | 5.1 | 2 | 1.2 | 22 | BMK | SIM****H5 | £29.05 | 5 days | |
| MGL6B0.79L17BMK | 5.1 | 2 | 1.2 | 17 | BMK | SIM****H5 | £26.00 | 5 days | |
| MGL6B0.79L23BMK | 6.1 | 0.79 | 1.8 | 23 | BMK | SIM****H6 | £27.88 | 5 days | |
| MGL6B1.0L15BMK | 6.1 | 0.79 | 1.8 | 15 | BMK | SIM****H6 | £28.00 | 5 days | |
| MGL6B1.0L17BMK | 6.1 | 1 | 1.4 | 17 | BMK | SIM****H6 | £30.75 | 5 days | |
| MGL6B1.0L22BMK | 6.1 | 1 | 1.8 | 22 | BMK | SIM****H6 | £29.95 | 5 days | |
| MGL6B1.19L17BMK | 6.1 | 1 | 1.4 | 17 | BMK | SIM****H6 | £26.00 | 5 days | |
| MGL6B1.19L23BMK | 6.1 | 1.19 | 1.8 | 23 | BMK | SIM****H6 | £27.88 | 5 days | |
| MGL6B1.59L17BMK | 6.1 | 1.19 | 1.8 | 17 | BMK | SIM****H6 | £26.00 | 5 days | |
| MGL6B1.59L23BMK | 6.1 | 1.59 | 1.8 | 23 | BMK | SIM****H6 | £27.88 | 5 days | |
| MGL6B1.5L15BMK | 6.1 | 1.59 | 1.8 | 15 | BMK | SIM****H6 | £28.00 | 5 days | |
| MGL6B1.5L17BMK | 6.1 | 1.5 | 1.4 | 17 | BMK | SIM****H6 | £30.75 | 5 days | |
| MGL6B1.5L22BMK | 6.1 | 1.5 | 1.8 | 22 | BMK | SIM****H6 | £29.95 | 5 days | |
| MGL6B1.5L23BMK | 6.1 | 1.5 | 1.4 | 23 | BMK | SIM****H6 | £27.88 | 5 days | |
| MGL6B2.0L15BMK | 6.1 | 1.5 | 1.8 | 15 | BMK | SIM****H6 | £28.00 | 5 days | |
| MGL6B2.0L17BMK | 6.1 | 2 | 1.4 | 17 | BMK | SIM****H6 | £30.75 | 5 days | |
| MGL6B2.0L22BMK | 6.1 | 2 | 1.8 | 22 | BMK | SIM****H6 | £29.95 | 5 days | |
| MGL6B2.0L23BMK | 6.1 | 2 | 1.4 | 23 | BMK | SIM****H6 | £32.98 | 5 days | |
| MGL7B1.0L15BMK | 6.1 | 2 | 1.8 | 15 | BMK | SIM****H6 | £31.55 | 5 days | |
| MGL7B1.0L22BMK | 7.1 | 1 | 2.5 | 22 | BMK | SIM****H7 | £31.55 | 5 days | |
| MGL7B1.0L30BMK | 7.1 | 1 | 2.5 | 30 | BMK | SIM****H7 | £36.18 | 5 days | |
| MGL7B1.19L22BMK | 7.1 | 1 | 2.5 | 22 | BMK | SIM****H7 | £27.88 | 5 days | |
| MGL7B1.19L30BMK | 7.1 | 1.19 | 2.5 | 30 | BMK | SIM****H7 | £30.58 | 5 days | |
| MGL7B1.59L22BMK | 7.1 | 1.59 | 2.5 | 22 | BMK | SIM****H7 | £27.88 | 5 days | |
| MGL7B1.59L30BMK | 7.1 | 1.59 | 2.5 | 30 | BMK | SIM****H7 | £30.58 | 5 days | |
| MGL7B1.5L15BMK | 7.1 | 1.59 | 2.5 | 15 | BMK | SIM****H7 | £32.93 | 5 days | |
| MGL7B1.5L22BMK | 7.1 | 1.5 | 2.5 | 22 | BMK | SIM****H7 | £32.93 | 5 days | |
| MGL7B1.5L30BMK | 7.1 | 1.5 | 2.5 | 30 | BMK | SIM****H7 | £36.18 | 5 days | |
| MGL7B2.0L15BMK | 7.1 | 1.5 | 2.5 | 15 | BMK | SIM****H7 | £32.93 | 5 days | |
| MGL7B2.0L22BMK | 7.1 | 2 | 2.5 | 22 | BMK | SIM****H7 | £32.93 | 5 days | |
| MGL7B2.0L30BMK | 7.1 | 2 | 2.5 | 30 | BMK | SIM****H7 | £36.18 | 5 days | |
| MGL8B1.0L22BMK | 7.1 | 2 | 2.5 | 22 | BMK | SIM****H7 | £33.55 | 5 days | |
| MGL8B1.5L22BMK | 8.1 | 1 | 1.7 | 22 | BMK | SIM****H8 | £33.55 | 5 days | |
| MGL8B2.0L22BMK | 8.1 | 1.5 | 1.7 | 22 | BMK | SIM****H8 | £33.55 | 5 days | |
| MGL8B2.38L15BMK | 8.1 | 2 | 2.6 | 15 | BMK | SIM****H8 | £28.35 | 5 days | |
| MGL8B2.38L22BMK | 8.1 | 2.38 | 2.6 | 22 | BMK | SIM****H8 | £28.35 | 5 days |
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