DeWalt DT20517-QZ HSS Twist Drill Bit 4.0mm

The DEWALT Black&Gold HSS Drill Bit has a 4.0 mm diameter and is designed for versatile drilling in plastic, wood, and metal. Its tapered web design enhances durability for demanding tasks, while the black and gold coating provides corrosion resistance and wear protection. The 135° split point tip reduces walking during drilling, and a 3-flats shank minimizes spin-out in the chuck for steadier operation. These features combine to create a robust drill bit suited to a range of common materials and drilling needs.

Technical features

• Diameter: 4.0 mm
• Material: High-Speed Steel (HSS)
• Coating: Black and gold
• Tip: 135° split point
• Shank: 3-flats to reduce spin-out
• Applications: plastic, wood, and metal

Use appropriate safety gear when drilling; apply steady pressure and let the drill do the work; set the drill to the appropriate speed for the material.