RUKO SPB-DIN1897 σπειροειδές τρυπάνι 7,2mm HSS-G DIN 1897

Precision-ground HSS-G twist drill bit with a 7.2 mm diameter, engineered for deep hole drilling in a wide range of materials up to 900 N/mm² tensile strength.

Overview

This RUKO SPB-DIN1897 drill bit is manufactured from high-speed steel (HSS-G) and ground from solid material to DIN 1897 standard, ensuring exceptional accuracy and durability. The 7.2 mm diameter with a 184 mm total length and 121 mm working length provides extended reach for deep drilling applications.

What stands out

• Ground from solid HSS-G for superior concentricity and cutting performance
• DIN 1897 standard ensures consistent quality and interchangeability
• 118° point angle ideal for general-purpose drilling in steel and non-ferrous metals
• Cylindrical shank with h8 tolerance for secure chuck grip
• Bright finish reduces friction and improves chip evacuation

Technical details

• Drill Bit Type: Twist Drill Bit
• Standard: DIN 1897
• Material: HSS-G (High-Speed Steel, Ground)
• Diameter: 7.2 mm
• Shank Type: Cylindrical / Parallel Shank
• Shank Diameter: 7.2 mm
• Total Length (l1): 184 mm
• Working Length (l2): 121 mm
• Point Angle: 118°
• Surface Finish: Bright / Ground
• Manufacturing Process: Ground from solid material
• Tolerance: h8
• Cutting Direction: Right-hand cutting
• Recommended Materials: Alloyed and unalloyed steel, cast steel, grey cast iron, malleable cast iron, non-ferrous metals, plastics
• Tensile Strength (Max): Up to 900 N/mm²
• Application: Deep hole drilling
• Flute Type: Standard spiral flute

Our verdict

A reliable, precision-ground twist drill bit for demanding deep-hole drilling tasks, offering excellent performance and longevity across a variety of materials.