RUKO SPB-DIN338-15.5mm Roll-Forged HSS Twist Drill Bit

This RUKO twist drill bit stands out for its roll-forged HSS construction, delivering reliable performance in general-purpose drilling across steel, cast iron, non-ferrous metals, and plastics. The 15.5 mm diameter and DIN 338 geometry ensure consistent results in demanding workshop environments.

Highlights

• Precision ground from high-speed steel (HSS) for durability
• Roll-forged manufacturing enhances toughness and wear resistance
• 118° point angle for efficient cutting and centering
• Cylindrical shank fits standard drill chucks
• Right-hand cutting direction for conventional drilling

In daily use

The bright surface finish reduces friction and improves chip evacuation, while the standard core thickness and web taper provide a balance of strength and chip flow. With a flute length of 114 mm and overall length of 169 mm, this bit offers ample reach for deep holes. The h8 tolerance ensures a precise fit in the chuck, minimizing runout.

Full specifications

• Drill Bit Type: Twist Drill Bit
• Standard: DIN 338
• Material: HSS (High-Speed Steel)
• Manufacturing Process: Roll-Forged
• Diameter: 15.5 mm
• Shank Type: Cylindrical
• Shank Diameter: 15.5 mm
• Overall Length (l1): 169 mm
• Flute Length (l2): 114 mm
• Point Angle: 118°
• Surface Finish: Bright
• Cutting Direction: Right-hand cut
• Tolerance: h8
• Application Materials: Steel, Cast Iron, Non-ferrous Metals, Plastics
• Recommended Use: General purpose drilling
• Heat Treatment: Hardened and Tempered
• Core Thickness: Standard
• Web Taper: Standard
• Chip Evacuation: Good
• Packaging Quantity: 1 piece

Final note

A dependable HSS twist drill bit for everyday metal and plastic drilling tasks, manufactured to DIN 338 standards.