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Carmex Carbide Tiny Tool - Boring & Profiling - MPR - K20 Grade - 3.1mm Minimum Diameter x 15mm Reach x R0.05

Carmex Carbide Tiny Tool - Boring & Profiling - MPR - K20 Grade - 3.1mm Minimum Diameter x 15mm Reach x R0.05

SKU:MPR3R0.05L15K20

The Carmex Carbide Tiny Tool - Boring & Profiling - MPR is a compact precision cutting tool engineered for micro-profiling and small-bore work. It’s ideal for engineers, machinists, tradespeo... Read more ↓
M
K
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ApplicationBoring and Profiling (MPR)
Minimum Diameter3.1
Reach (L1)15
Radius (R)0.05
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£22.13
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Carmex Carbide Tiny Tool - Boring & Profiling - MPR is a compact precision cutting tool engineered for micro-profiling and small-bore work. It’s ideal for engineers, machinists, tradespeople, hobbyists, and anyone tackling intricate shapes and profiles in tight spaces.

Built from premium-grade carbide, this tiny tool delivers exceptional durability, strength, and wear resistance. With a 3.1 mm minimum diameter, a 15 mm reach, and a finely tuned R0.05 nose radius, it excels at creating precise profiles and clean bores in small parts and components.

  • Ultra-compact reach for tight features: The 3.1 mm diameter and 15 mm reach enable access to confined pockets and contours without sacrificing stability, making precise profiling and boring possible in hard‑to‑reach areas.
  • Precise profiling and bore with a fine nose radius: R0.05 nose radius delivers smooth transitions and accurate contours, reducing burrs and improving surface finish on delicate or small-scale parts.
  • Durable carbide for long tool life: Premium-grade carbide provides outstanding wear resistance and consistent performance across repeated micro‑machining operations, helping minimize downtime and replacement costs.

Designed for small-part workflows, this tool supports repeatable, high-quality profiles and bores with fewer passes and less setup time, improving efficiency and overall results in micro-machining tasks.

Part Numbers

Protool Part Number
MPR3R0.05L15K20
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.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Carmex Carbide Tiny Tools - Profiling & Boring - Grade K20 (MPR)

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You are viewing MPR3R0.05L15K20. Click any other SKU to view its full details.

Product SKUMinimum DiameterReachRadiusProfile Max DepthGradeHolderPriceStock Order
MPR1R0.05L4K20 140.050.2K20SIM****H3£22.40 5 days
MPR1.2R0.1L9K20 1.290.10.3K20SIM****H3£24.58 5 days
MPR1.2R0.1L5K20 1.250.10.3K20SIM****H3£22.40 5 days
MPR1R0.05L8K20 180.050.2K20SIM****H3£20.80 5 days
MPR1.5R0.1L6K20 1.560.10.3K20SIM****H3£22.40 5 days
MPR3R0.05L15K20 Viewing3.1150.050.7K20SIM****H3£22.13 5 days
MPR2.5R0.1L10K20 2.5100.10.6K20SIM****H4£21.28 5 days
MPR5R0.1L30K20 5.1300.11.2K20SIM****H5£30.13 5 days
MPR2R0.15L15K20 2.1150.150.5K20SIM****H3£21.28 5 days
MPR4R0.1L15K20 4.1150.10.8K20SIM****H4£22.48 5 days
MPR7R0.2L30K20 7.1300.21.5K20SIM****H7£32.50 5 days
MPR1.5R0.05L10K20 1.5100.050.3K20SIM****H3£20.80 5 days
MPR2R0.15L5K20 2.150.150.5K20SIM****H3£20.30 5 days
MPR2R0.05L10K20 2.1100.050.5K20SIM****H3£21.33 5 days
MPR8R0.2L35K20 8.1350.21.6K20SIM****H8£35.10 5 days
MPR3R0.2L15K20 3.1150.20.7K20SIM****H3£22.13 5 days
MPR8R0.2L22K20 8.1220.21.6K20SIM****H8£32.05 5 days
MPR5R0.2L30K20 5.1300.21.2K20SIM****H5£30.13 5 days
MPR2R0.1L10K20 2.1100.10.5K20SIM****H3£20.30 5 days
MPR3R0.1L15K20 3.1150.10.7K20SIM****H3£22.13 5 days
MPR7R0.2L22K20 7.120.21.5K20SIM****H7£29.43 5 days
MPR4R0.1L10K20 4.1100.10.8K20SIM****H4£19.05 5 days
MPR4R0.2L15K20 4.1150.20.8K20SIM****H4£22.48 5 days
MPR2.5R0.1L15K20 2.5150.10.6K20SIM****H4£21.28 5 days
MPR6R0.2L30K20 6.1300.21.4K20SIM****H6£30.73 5 days
MPR4R0.2L10K20 4.1100.20.8K20SIM****H4£20.83 5 days
MPR5R0.2L22K20 5.1220.21.2K20SIM****H5£26.23 5 days
MPR3R0.1L22K20 3.1220.10.7K20SIM****H3£23.18 5 days
MPR3R0.2L22K20 3.1220.20.7K20SIM****H3£23.18 5 days
MPR4R0.1L22K20 4.1220.10.8K20SIM****H4£23.63 5 days
MPR4R0.2L22K20 4.1220.20.8K20SIM****H4£23.63 5 days
MPR6R0.2L22K20 6.1220.21.4K20SIM****H6£26.73 5 days
MPR2R0.15L10K20 2.1100.150.5K20SIM****H3£20.30 5 days
MPR3R0.1L10K20 3.1100.10.7K20SIM****H3£20.30 5 days
MPR5R0.1L22K20 5.1220.11.2K20SIM****H5£26.23 5 days
MPR3R0.2L10K20 3.1100.20.7K20SIM****H3£20.30 5 days
MPR3R0.05L10K20 3.1100.050.7K20SIM****H3£20.30 5 days
MPR10R0.2L35K20 10.1350.22K20SIM****H10£36.15 5 days
MPR5R0.2L15K20 5.1150.21.2K20SIM****H5£22.98 5 days
MPR6R0.2L15K20 6.1150.21.4K20SIM****H6£23.65 5 days
MPR4R0.2L30K20 4.1300.20.8K20SIM****H4£26.20 5 days
MPR8R0.2L15K20 8.1150.21.6K20SIM****H8£28.43 5 days
MPR6R0.2L10K20 6.1100.21.4K20SIM****H6£23.65 5 days
MPR5R0.2L10K20 5.1100.21.2K20SIM****H5£19.43 5 days
MPR5R0.2L40K20 5.1400.20.9K20SIM****H5£33.10 5 days
MPR6R0.2L40K20 6.1400.21K20SIM****H6£33.80 5 days
MPR7R0.2L35K20 7.1350.21.5K20SIM****H7£34.13 5 days
MPL1.2R0.1L5K20 1.250.10.3K20SIM****H3£18.93 5 days
MPL1.2R0.1L9K20 1.290.10.3K20SIM****H3£20.80 5 days
MPL1.5R0.05L10K20 1.5100.050.3K20SIM****H3£20.80 5 days
MPL1.5R0.1L10K20 1.5100.10.3K20SIM****H3£22.83 5 days
MPL1.5R0.1L6K20 1.560.10.3K20SIM****H3£22.40 5 days
MPL10R0.2L35K20 10.1350.22K20SIM****H10£36.15 5 days
MPL1R0.05L4K20 140.050.2K20SIM****H3£22.40 5 days
MPL1R0.05L8K20 180.050.2K20SIM****H3£20.80 5 days
MPL2.5R0.1L10K20 2.5100.10.6K20SIM****H3£18.00 5 days
MPL2.5R0.1L15K20 2.5150.10.6K20SIM****H3£18.00 5 days
MPL2R0.05L10K20 2.1100.050.5K20SIM****H3£21.33 5 days
MPL2R0.15L10K20 2.1100.150.5K20SIM****H3£20.30 5 days
MPL2R0.15L15K20 2.1150.150.5K20SIM****H3£21.28 5 days
MPL2R0.15L5K20 2.150.150.5K20SIM****H3£20.30 5 days
MPL2R0.1L10K20 2.1100.10.5K20SIM****H3£20.30 5 days
MPL3R0.05L10K20 3.1100.050.7K20SIM****H3£20.30 5 days
MPL3R0.05L15K20 3.1150.050.7K20SIM****H3£22.13 5 days
MPL3R0.1L10K20 3.1100.10.7K20SIM****H3£17.18 5 days
MPL3R0.1L15K20 3.1150.10.7K20SIM****H3£22.13 5 days
MPL3R0.1L22K20 3.1220.10.7K20SIM****H3£23.18 5 days
MPL3R0.2L10K20 3.1100.20.7K20SIM****H3£20.30 5 days
MPL3R0.2L15K20 3.1150.20.7K20SIM****H3£22.13 5 days
MPL3R0.2L22K20 3.1220.20.7K20SIM****H3£23.18 5 days
MPL4R0.1L10K20 4.1100.10.8K20SIM****H4£19.05 5 days
MPL4R0.1L15K20 4.1150.10.8K20SIM****H4£22.48 5 days
MPL4R0.1L22K20 4.1220.10.8K20SIM****H4£23.63 5 days
MPL4R0.2L10K20 4.1100.20.8K20SIM****H4£20.83 5 days
MPL4R0.2L15K20 4.1150.20.8K20SIM****H4£22.48 5 days
MPL4R0.2L22K20 4.1220.20.8K20SIM****H4£23.63 5 days
MPL4R0.2L30K20 4.1300.20.8K20SIM****H4£22.15 5 days
MPL5R0.1L22K20 5.1220.11.2K20SIM****H5£26.23 5 days
MPL5R0.1L30K20 5.1300.11.2K20SIM****H5£30.13 5 days
MPL5R0.2L10K20 5.1100.21.2K20SIM****H5£19.43 5 days
MPL5R0.2L15K20 5.1150.21.2K20SIM****H5£22.98 5 days
MPL5R0.2L22K20 5.1220.21.2K20SIM****H5£26.23 5 days
MPL5R0.2L30K20 5.1300.21.2K20SIM****H5£30.13 5 days
MPL5R0.2L40K20 5.1400.20.9K20SIM****H5£27.98 5 days
MPL6R0.2L10K20 6.1100.21.4K20SIM****H6£20.03 5 days
MPL6R0.2L15K20 6.1150.21.4K20SIM****H6£23.65 5 days
MPL6R0.2L22K20 6.1220.21.4K20SIM****H6£26.73 5 days
MPL6R0.2L30K20 6.1300.21.4K20SIM****H6£30.73 5 days
MPL6R0.2L40K20 6.1400.21K20SIM****H6£28.63 5 days
MPL7R0.2L22K20 7.120.21.5K20SIM****H7£29.43 5 days
MPL7R0.2L30K20 7.1300.21.5K20SIM****H7£32.50 5 days
MPL7R0.2L35K20 7.1350.21.5K20SIM****H7£34.13 5 days
MPL8R0.2L15K20 8.1150.21.6K20SIM****H8£28.43 5 days
MPL8R0.2L22K20 8.1220.21.6K20SIM****H8£32.05 5 days
MPL8R0.2L35K20 8.1350.21.6K20SIM****H8£35.10 5 days

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