Broca helicoidal Extreme HSS 5,5 mm com afiação em cruz para metal, madeira, plástico

Twist drill bit engineered for clean, precise holes in metal, wood, and plastic. The 135° split point eliminates walking and reduces thrust, while the bronze finish resists wear and improves chip evacuation.

Advantages

High-speed steel (HSS-G) construction delivers durability and heat resistance. Ground flutes ensure efficient chip removal, and the cylindrical shank fits standard drill chucks. The split point design starts on contact without a center punch, even on curved surfaces.

Suitable for

• Mild steel, sheet metal, and non-ferrous metals
• Hard and soft woods, plywood, and MDF
• Plastics such as acrylic, PVC, and polycarbonate
• General maintenance, fabrication, and DIY projects

Key specifications

• Diameter: 5.5 mm
• Overall length: 93 mm
• Working length: 57 mm
• Point angle: 135° split point
• Material: High Speed Steel (HSS-G)
• Finish: Bronze
• Standard: DIN 338
• Shank: Cylindrical, 5.5 mm

Recommendations

Use with a drill press or handheld drill at appropriate speeds for the material. Apply cutting fluid when drilling metal to extend bit life. For best results, start with a center punch on hard metals and reduce pressure as the bit exits the workpiece.