RUKO SPB-TL3000-5.5mm DIN338 HSS-G Twist Drill Bit

Precision drilling in metal and other materials demands a bit that stays sharp, centers accurately, and withstands high temperatures. The RUKO SPB-TL3000-5.5mm DIN338 HSS-G twist drill bit is ground from solid high-speed steel to deliver reliable performance in general-purpose drilling tasks.

Who is it for

This drill bit is for professionals and serious DIYers who need a durable, accurate 5.5 mm bit for steel, cast iron, non-ferrous metals, plastics, and wood. It suits workshops, maintenance, and fabrication where consistent hole quality matters.

Main features

• Ground HSS-G high-speed steel for heat resistance up to 600°C
• DIN 338 standard with 118° point angle for accurate centering
• Bright, uncoated finish reduces friction in most materials
• Right-hand cutting with cylindrical shank for standard chucks
• h8 tolerance for precise hole diameters

Specifications

• Drill bit type: Twist drill bit
• Diameter: 5.5 mm
• Overall length: 93 mm
• Working length: 57 mm
• Shank: Cylindrical, 5.5 mm diameter
• Material: HSS-G (ground high-speed steel)
• Point angle: 118°
• Cutting direction: Right-hand
• Flute type: Standard spiral
• Manufacturing process: Ground from solid
• Tolerance: h8
• Surface finish: Bright (uncoated)
• Application: General purpose drilling
• Suitable materials: Steel, cast iron, non-ferrous metals, plastics, wood
• Heat resistance: Up to 600°C

Tips

Use a center punch to mark the hole location for improved accuracy. Apply cutting fluid when drilling steel to extend bit life. Reduce speed when drilling hard materials and increase feed pressure gradually.