RUKO SPB-DIN338-HSS-G-Kreuz-6,7mm σπειροειδές τρυπάνι

Precision drilling in tough materials often leads to wandering drill bits and excessive feed pressure. This RUKO twist drill bit solves that with a self-centering split point that reduces feed pressure and ensures accurate hole positioning.

Who is it for

Metalworkers, machinists, and serious DIYers who need reliable, precise holes in alloyed and unalloyed steel, cast iron, non-ferrous metals, and plastics.

Main features

• DIN 338 standard twist drill bit with 6.7 mm diameter
• Made from HSS-G (high-speed steel, ground) for durability
• Split point (Kreuzanschliff) with 135° point angle for self-centering
• Precision ground with bright finish and h8 tolerance
• Right-hand cutting direction
• Excellent chip removal

Specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-G
• Diameter: 6.7 mm
• Point type: Split point
• Point angle: 135°
• Shank type: Cylindrical
• Overall length: 109 mm
• Working length: 69 mm
• Manufacturing process: Precision ground
• Surface finish: Bright
• Cutting direction: Right-hand
• Tolerance class: h8
• Suitable materials: Alloyed and unalloyed steel, cast iron, non-ferrous metals, plastics
• Packaging quantity: 1 piece

Tips

Use appropriate cutting fluid when drilling steel to extend tool life. Ensure the drill is securely chucked and the workpiece is clamped to prevent movement.