These 4 mm drill bits made of HSS (High Speed Steel) high-speed steel are much longer-lasting, wear-resistant and heat-resistant than standard bits thanks to their titanium coating.

Superior in wood, metal, plastic and aluminum surfaces.

It is an ideal set for both professional craftsmen and daily use.

Thanks to the economical set structure of 10, you can work without a spare for a long time, especially in the frequently used 4 mm size.

Ω ⭐ Featured Features • Longer life with ✔️ titanium coating • ✔️ HSS high-speed steel – drills durable, sharp, clean holes • ✔️ 4 mm ideal length for frequent use • ✔️ 10 economic packages • Suitable for ✔️ wood, metal, plastic and aluminum • Compatible with all ✔️ percussion /non-collision drills 🔧 Technical Specifications • Diameter: 4 mm • Material: HSS-Titanium Coating • Quantity: Set of 10 • Compliance: Rechargeable, electric and bench-type all drills 🛠️ • Woodworking • Metal drilling • Plastic drilling • Installation, repair and construction works • Hobby & model making • 📌 Advantages of electrical and mechanical applications • Less heating during drilling • Less wear, longer service life • Faster and controlled drilling than standard inserts • Comfortable operation without slipping thanks to spiral form