RUKO SPB-DIN338-HSS-G-Kreuz 7/16 polegadas broca helicoidal com afiação cruzada

Drilling precise holes in tough materials like steel and cast iron requires a drill bit that stays sharp and cuts cleanly. The RUKO SPB-DIN338-HSS-G-Kreuz 7/16 inch twist drill bit solves this with a split point tip that reduces walking and a fully ground HSS construction for durability.

Who is it for

This drill bit is for professionals and serious DIYers who need reliable performance in metal, wood, and plastics. Its 7/16 inch diameter is ideal for creating holes for bolts, dowels, or cable pass-throughs.

Main features

• Split point (Kreuzanschliff) tip for accurate starting without a center punch
• High-speed steel (HSS-G) fully ground for sharpness and long life
• DIN 338 standard dimensions ensure compatibility with standard drill chucks
• Right-hand cutting direction for standard drilling operations
• Bright finish for clean cutting in general-purpose applications

Specifications

• Drill diameter: 7/16 inch (11.11 mm)
• Shank diameter: 7/16 inch (11.11 mm)
• Total length: 142 mm
• Flute length: 94 mm
• Point angle: 135°
• Helix angle: 25-30° (Type N)
• Number of flutes: 2
• Tolerance: h8
• Material: High-Speed Steel (HSS-G)
• Surface finish: Bright / Uncoated
• Manufacturing process: Fully Ground
• Packaging quantity: 1 piece

Tips

Use cutting fluid when drilling steel to extend bit life. For best results, start at a low speed and increase as the bit bites into the material.