A set of 13 drills for metal made of high-speed steel HSS, which makes the drills exceptionally strong, durable, and resistant to wear, enabling work at high speeds. The surface coated with titanium nitride increases their hardness, resistance to wear, heat, and corrosion, and also reduces friction. They are perfect for high-performance machining.

• made of high-speed alloy steel HSS
• titanium nitride coating
• hexagonal shank
• tool holder size: 1/4" (6.3 mm)
• drill diameters: 1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, 6.5 mm

Usage warnings: