This high-quality Dormer drill bit with a 4mm diametre is an essential tool for professionals in automation, electronics, electrical, and mechanical industries. Made of durable HSS-E material, this precision drill bit from the A777 series ensures long-lasting performance and high cutting precision.

• Premium Dormer drill bit designed for metal cutting applications
• High-speed steel twist drill bit for superior performance
• 10-piece drill bit set for versatility in different projects
• 4mm diametre for precise drilling operations

• Ideal for use in automation, electronics, electrical, and mechanical industries
• Perfect for creating holes in metal surfaces with precision
• Suitable for DIY enthusiasts, professionals, and hobbyists alike

Yes, this high-performance drill bit is perfect for drilling holes in stainless steel due to its HSS-E material.

Yes, this Dormer drill bit is designed to provide efficient drilling on aluminium surfaces with ease.

While primarily designed for metal cutting, this drill bit can also be used on wood materials if necessary.