RUKO DIN 338 HSS-G Twist Drill Bit 5.5 mm Type N

Drilling precise holes in metal, cast iron, and plastics demands a bit that stays sharp and cuts cleanly without wandering. The RUKO DIN 338 HSS-G twist drill bit with a 5.5 mm diameter is ground from high-speed steel to deliver accurate, repeatable holes in everyday workshop tasks.

Who is it for

This bit suits metalworkers, maintenance technicians, and serious DIYers who need a reliable, standard-size drill for steel, non-ferrous metals, and plastics. Its DIN 338 geometry matches most drill chucks and common drilling machines.

Main features

• 5.5 mm diameter with cylindrical shank for secure chuck grip
• Ground HSS-G steel for durability and clean cutting edges
• Type N point with 118° angle for general-purpose drilling
• Right-hand cutting direction for standard clockwise rotation
• Bright polished finish reduces friction and improves chip flow

Specifications

• Standard: DIN 338
• Material: High-Speed Steel (HSS-G)
• Drill bit diameter: 5.5 mm
• Shank type: Cylindrical
• Shank diameter: 5.5 mm
• Total length: 93 mm
• Working length (flute length): 57 mm
• Point angle: 118°
• Cutting direction: Right-hand cutting
• Surface treatment: Bright / Polished
• Suitable materials: Steel, cast iron, non-ferrous metals, plastics
• Manufacturing process: Ground (G)
• Tolerance: h8
• Packaging quantity: 1 piece

Tips

Use a centre punch to mark the hole position before drilling to prevent the bit from wandering. Apply cutting fluid when drilling steel to extend tool life and improve hole quality.