RUKO SPB-DIN1897-8.5mm HSS-G Twist Drill Bit for Deep Hole Drilling

Machinists and metalworkers rely on the RUKO SPB-DIN1897-8.5mm twist drill bit for precise deep hole drilling in alloyed and unalloyed steel, cast iron, non-ferrous metals, and plastics. This ground HSS-G bit delivers clean, accurate holes with a 118° point angle and right-hand cutting direction.

Key specifications

• Drill bit type: Twist drill bit
• Standard: DIN 1897
• Material: HSS-G (High-Speed Steel, Ground)
• Diameter: 8.5 mm
• Shank type: Cylindrical
• Shank diameter: 8.5 mm
• Total length: 117 mm
• Working length (flute length): 75 mm
• Point angle: 118°
• Cutting direction: Right-hand
• Surface treatment: Bright / Ground
• Tolerance: h8
• Application: Deep hole drilling
• Suitable materials: Alloyed and unalloyed steel, cast iron, non-ferrous metals, plastics
• Manufacturing method: Ground from solid material
• Flute type: Standard spiral
• Core thickness: Standard
• Web taper: Standard

Why choose it

The RUKO SPB-DIN1897-8.5mm is ground from solid HSS-G for consistent performance and long tool life. Its cylindrical shank fits standard drill chucks, and the h8 tolerance ensures precise hole sizing. The bright finish reduces friction and improves chip evacuation in deep holes.

Ideal use cases

• Deep hole drilling in steel components
• Creating pilot holes for threading or reaming
• Drilling non-ferrous metals and plastics in workshop or production environments

Good to know

This drill bit follows DIN 1897, a standard for short series twist drills with cylindrical shanks. It is suitable for use with cutting oil or coolant to extend tool life when drilling tougher materials.