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

Carmex Carbide Groove Mill With Internal Coolant - 7.8mm x 1.5mm

SKU:MG08078D15W15MT8

The Carmex Carbide Groove Mill with Internal Coolant is a precision cutting tool built for machinists who demand clean, repeatable grooves in a variety of materials. Crafted from solid carbide, i... Read more ↓
P
M
K
N
S
H
Cutter Diameter7.8
Shank Diameter8
Reach15
Overall Length64
View all specifications ↓
Download Cutting Data
£127.22
Prices shown ex. VAT
5 days estimated lead time — subject to availability
View Other Sizes →
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.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Carmex Carbide Groove Mill with Internal Coolant is a precision cutting tool built for machinists who demand clean, repeatable grooves in a variety of materials. Crafted from solid carbide, it combines durability with reliable performance, even in challenging machining conditions.

  • Diameter: 7.8 mm with a groove width of 1.5 mm for precise groove profiles
  • Material: Solid carbide construction for exceptional stiffness, wear resistance, and long tool life
  • Internal coolant: Integrated cooling and chip evacuation through the flutes to maintain cutting efficiency and reduce heat
  • Groove geometry: Precisely engineered groove shape for clean, accurate grooving and intricate profiles
  • Minimum grooving diameter: Supports grooving diameters as small as 4 mm
  • Flute design: 3–5 spiral flutes deliver smooth cutting action and effective chip control
  • Versatility: One tool can handle both internal and external grooving with consistent results

This groove mill is designed to enhance accuracy and surface finish while extending tool life. The solid carbide core ensures rigidity and wear resistance, while the internal coolant and flute-through cooling optimize chip removal and heat management. With its precise groove geometry and multi-flute design, it delivers dependable performance for detailed grooves, keyways, and internal recesses—making it a reliable choice for CNC operators, toolmakers, and production shops aiming for consistent, high-quality results.

Part Numbers

Protool Part Number
MG08078D15W15MT8
Brand
Carmex
Category
Groove Mill
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 Groove Mill With Internal Coolant

View full collection →

You are viewing MG08078D15W15MT8. Click any other SKU to view its full details.

Product SKUCutter DiameterShank DiameterReachOverall LengthNumber of FlutesGroove DepthGroove WidthPriceStock Order
MG0604C4W05MT8 464.25130.60.5£95.44 In Stock
MG0604C4W10MT8 464.25130.61£95.44 5 days
MG0606C7W10MT8 66758311£95.44 In Stock
MG0606C7W15MT8 66758311.5£95.44 5 days
MG0606C8W08MT8 6685830.80.8£95.44 5 days
MG08078D10W10MT8 7.88106441.21£127.22 5 days
MG08078D15W15MT8 Viewing7.88156441.51.5£127.22 5 days
MG08078D15W20MT8 7.88156441.52£127.22 In Stock
MG10098D20W12MT8 9.810207341.41.2£164.62 5 days
MG10098D20W15MT8 9.8102073421.5£164.68 5 days
MG10098D20W20MT8 9.8102073422£164.68 5 days
MG1212E30W15MT8 1212308452.21.5£203.92 5 days
MG1212E30W20MT8 1212308452.22£203.92 5 days
MG1212E30W30MT8 1212308452.23£203.92 5 days
MG1616E30W14MT8 16163010151.81.4£254.82 5 days
MG1616E40W17MT8 161640101521.7£254.82 In Stock
MG1616E45W19MT8 16164510152.21.95£254.82 In Stock

Other sizes in this range

with tools we think you'll like
All 17 →