Broca helicoidal RUKO SPB-DIN338-HSS-G com afiação em cruz 8,6 mm

Precision drilling in tough metals demands a bit that starts true and cuts cleanly. The RUKO SPB-DIN338-HSS-G Kreuz 8.6 mm twist drill bit answers that need with a fully ground high-speed steel body and a self-centering split point, eliminating the need for center punching and reducing feed force.

Who is it for

Metalworkers, machinists, and serious DIYers who require exact hole placement and long tool life in steel, cast iron, non-ferrous metals, and plastics.

Main features

• Split point (Kreuzanschliff) geometry with 135° point angle for self-centering and reduced wandering
• Fully ground HSS-G high-speed steel for sharp, durable cutting edges
• DIN 338 standard dimensions: 8.6 mm diameter, 125 mm total length, 81 mm flute length
• Cylindrical shank with h8 tolerance for secure chuck grip
• Right-hand cutting, type N helix for efficient chip evacuation
• Bright uncoated finish for general-purpose use

Specifications

• Diameter: 8.6 mm
• Total length: 125 mm
• Flute length: 81 mm
• Shank diameter: 8.6 mm
• Point angle: 135°
• Material: HSS-G (high-speed steel, ground)
• Standard: DIN 338
• Tip geometry: Split point
• Shank type: Cylindrical
• Cutting direction: Right-hand
• Tolerance: h8
• Surface finish: Bright (uncoated)
• Helix angle: Type N
• Packaging unit: 1 piece

Tips

Use cutting fluid when drilling steel to extend bit life and improve finish. For deep holes, withdraw the bit periodically to clear chips.