RUKO SPB-DIN1897-11.5mm HSS-G Long Series Twist Drill Bit

Deep hole drilling in tough metals requires a bit that stays sharp, clears chips efficiently, and maintains accuracy without wandering. The RUKO SPB-DIN1897-11.5mm is a precision-ground HSS-G twist drill bit built for exactly that kind of work.

Who is it for

Machinists, metalworkers, and maintenance professionals who need a reliable long-series drill for steel, cast iron, non-ferrous metals, and plastics. It fits standard drill chucks with its cylindrical shank.

Main features

• 11.5 mm diameter with h8 tolerance for precise holes
• Long series length: 151 mm total, 101 mm flute length for deep reach
• HSS-G (ground high-speed steel) for sharpness and durability
• 118° point angle, right-hand cutting, Type N helix for general-purpose use
• Bright finish reduces friction and improves chip flow

Specifications

• Drill bit type: Twist drill bit
• Material: HSS-G
• Standard: DIN 1897
• Diameter: 11.5 mm
• Total length: 151 mm
• Flute length: 101 mm
• Shank type: Cylindrical
• Shank diameter: 11.5 mm
• Point angle: 118°
• Surface finish: Bright
• Tolerance: h8
• Cutting direction: Right-hand
• Helix angle: Type N
• Heat resistance: Up to 400°C
• Packaging quantity: 1 piece

Tips

Use a pilot hole for diameters above 10 mm to improve accuracy and reduce drill walk. Apply cutting fluid when drilling steel to extend tool life.