RUKO SPB-DIN338-HSS-G-Kreuz-15.5mm Twist Drill Bit

Precision drilling in tough materials often leads to wandering bits and excessive feed pressure. The RUKO SPB-DIN338-HSS-G-Kreuz-15.5mm twist drill bit solves this with a cross-ground split point that self-centers and reduces feed pressure, making it ideal for general-purpose drilling in steel, cast iron, non-ferrous metals, plastics, and wood.

Who is it for

This drill bit is for professionals and serious DIYers who need a reliable, high-performance twist drill bit for everyday drilling tasks. It is particularly suited for materials up to 900 N/mm² tensile strength.

Main features

• Made from high-speed steel (HSS) with a ground finish (HSS-G) for durability and precision.
• Cross-ground split point (Kreuz) with 135° point angle for accurate starting and reduced walking.
• Conforms to DIN 338 standard for consistent dimensions and performance.
• Right-hand cutting direction with cylindrical shank for compatibility with standard drill chucks.
• Diameter: 15.5 mm, overall length: 169 mm, flute length: 114 mm.
• Bright surface finish for corrosion resistance and smooth chip evacuation.
• Part of the Ruko 204 Series, known for quality and reliability.

Specifications

• Drill bit type: Twist drill bit
• Material: High-speed steel (HSS)
• Manufacturing process: Ground (HSS-G)
• Standard: DIN 338
• Diameter: 15.5 mm
• Shank type: Cylindrical (parallel shank)
• Point type: Split point (cross ground)
• Point angle: 135°
• Helix angle: Standard (approx. 25-30°)
• Surface finish: Bright
• Overall length: 169 mm
• Flute length: 114 mm
• Tolerance: h8
• Cutting direction: Right-hand cutting
• Recommended materials: Steel, cast iron, non-ferrous metals, plastics, wood
• Max tensile strength: Up to 900 N/mm²
• Self-centering: Yes
• Reduced feed pressure: Yes
• Application: General purpose drilling
• Series: Ruko 204 Series

Tips

Use a suitable cutting fluid when drilling hard metals to extend tool life. Ensure the drill is securely chucked and the workpiece is clamped to prevent movement. For best results, start at a lower speed and increase as needed.