RUKO DIN 345 broca helicoidal HSS-E Co5 con cono Morse 47,0 mm

The RUKO SPB-DIN345-47,0mm-HSS is a heavy-duty twist drill engineered for demanding drilling in tough materials. Its Morse taper shank (MT5) provides a secure, self-locking fit in machine spindles, eliminating slippage under high torque. The 5% cobalt high-speed steel (HSS-E Co5) offers excellent heat resistance, making it suitable for stainless steel and high-tensile alloys up to 1100 N/mm².

Highlights

• 47.0 mm diameter with cross-ground point for accurate centering and reduced thrust
• Morse taper shank MT5 for direct mounting in drilling machines
• Fully ground from HSS-E Co5 for high wear resistance and long tool life
• Thickened core increases stability and reduces vibration during deep drilling
• Bright finish for clean chip evacuation and corrosion resistance

In daily use

This drill bit is intended for professional workshops and industrial applications. The 130° point angle and cross-ground geometry allow precise spot drilling without a center punch. The right-hand cut and h8 tolerance ensure consistent hole quality. With a total length of 450 mm and a cutting length of 240 mm, it can handle deep holes in a single pass. The Morse taper shank must be matched to the machine's spindle taper; an adapter sleeve may be required if the spindle taper differs.

Full specifications

• Drill Bit Type: Twist Drill
• Shank Type: Morse Taper Shank
• Morse Taper Size: MT5
• Material: HSS-E Co 5 (5% Cobalt High-Speed Steel)
• Standard: DIN 345
• Drill Diameter: 47.0 mm
• Total Length (l1): 450 mm
• Cutting Length (l2): 240 mm
• Point Angle: 130°
• Point Geometry: Cross-ground point
• Surface Finish: Bright
• Tolerance: h8
• Direction of Cut: Right-hand cut
• Recommended Application: Alloyed and unalloyed steels, cast iron, non-ferrous metals, plastics, stainless steel, and other tough materials
• Heat Resistance: Very High
• Tensile Strength (Material): Up to 1100 N/mm²
• Manufacturing Process: Fully Ground
• Core Design: Thickened core

Final note

For best results, use appropriate cutting fluid and ensure the machine has sufficient power and rigidity for large diameter drilling.