Long tungsten carbide burs Discount Autosport

The essential tool for all machining, polishing or correction work on cylinder head ducts.

With an overall length of 150 mm and a 6 mm shank, they offer optimum access to deep, narrow areas, enabling precision work to be carried out on even the most complex cylinder heads.

Made from high-density tungsten carbide, these cutters guarantee exceptional durability, high heat resistance and consistent cutting quality.
They are ideal for aluminium, steel, cast iron or brass, and allow you to adjust, smooth or enlarge your ducts to improve airflow and engine performance.

👉 Pro tip: to prevent the cutters from clogging with aluminium, run them briefly in candle wax before use.

⚙️ Technical specifications:

• Number of cutters: 4 pieces

• Total length: 150 mm

• Shank diameter: 6 mm

• Material: tungsten carbide

• Main use: machining and scraping of cylinder head ducts

• Compatibility: drill, grinder, straight cutter, 6 mm chuck

• Heat resistance: up to 800°C

• Type of cut: double toothed (fast and fine)

• Tip for use: apply candle wax to limit clogging on aluminium

• Warranty: 2 years – Discount Autosport

⚡ Applications

• 🏎️ Machining and preparation of cylinder heads (petrol / diesel engines)

• 🔩 Deburring and polishing intake and exhaust ducts

• ⚙️ Improving air flow and engine performance

• 🧱 Precision mechanical work and automotive restoration

Product benefits

✅ Length 150 mm to reach deep areas
✅ High-strength tungsten carbide – long service life
✅ Clean cut on aluminium, steel, cast iron and brass
✅ Compatible with drills, grinders and straight cutters
✅ Optimises the flow of cylinder head ducts
✅ Usage tip: spark plug wax to prevent clogging
✅ Complete set of 4 cutters
✅ Professional quality – Discount Autosport