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Carmex Carbide Tiny Tool - Boring Bar - MTR - K20 Grade - 1.5mm Minimum Diameter x 6mm Reach x R0

Carmex Carbide Tiny Tool - Boring Bar - MTR - K20 Grade - 1.5mm Minimum Diameter x 6mm Reach x R0

SKU:MTR1.5R0L6K20

Carmex Carbide Tiny Tool is a precision boring bar built from solid carbide, designed for micro-machining where space is tight and accuracy matters. With a 1.5 mm minimum diameter, a 6 mm reach, ... Read more ↓
M
K
N
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ApplicationBoring (MTR)
Minimum Diameter1.5
Reach (L1)6
Radius (R)0
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£22.40
Prices shown ex. VAT
5 days estimated lead time — subject to availability
Free delivery over £50 ex VAT
Secure checkout
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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Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

Carmex Carbide Tiny Tool is a precision boring bar built from solid carbide, designed for micro-machining where space is tight and accuracy matters. With a 1.5 mm minimum diameter, a 6 mm reach, and an R0 tip, this tiny tool excels at boring small-diameter holes and performing delicate finishing passes in compact workpieces while delivering stable, repeatable results.

Two coated grades are available to match material and cutting conditions. The BXC option uses a PVD TiN coating for low cutting speeds and performs well with a wide range of stainless steels (ISO P30-P50 / K25-K40). The BMK grade features a sub-micron core with an advanced PVD triple coating for extremely high heat resistance and smooth cutting, providing reliable performance across a broad material spectrum (ISO K10-K20) and general-purpose capability for all materials.

  • Micro-diameter, long-reach boring capability: Access tight bores and internal features with a 1.5 mm minimum diameter and a 6 mm reach, enabling precise micro-machining in small parts.
  • Two high-performance coatings: Choose BXC TiN for low-speed stainless steel work or BMK’s triple coating for high heat resistance and smooth cutting across materials.
  • Solid carbide construction with R0 tip: Delivers consistent, clean entry cuts and long tool life in demanding boring and turning tasks.

These characteristics help you reduce setup time, minimize downtime, and achieve consistent hole quality and surface finish across stainless steels and other materials. The tiny tool’s compact form factor and robust coatings support repeatable results and reliable performance, making it a dependable choice for engineers, machinists, and hobbyists tackling micro-boring and precision turning.

Part Numbers

Protool Part Number
MTR1.5R0L6K20
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.

Complete Your Project

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