RUKO DIN 345 HSS Morse Taper Twist Drill Bit 33.0 mm MT4

For machinists and metalworking professionals, the RUKO DIN 345 HSS twist drill bit with Morse taper shank delivers reliable drilling in steel, cast iron, and non-ferrous metals. The 33.0 mm cutting diameter and MT4 shank fit directly into machine spindles, ensuring a secure hold during heavy-duty operations.

Key specifications

• Cutting diameter: 33.0 mm
• Shank type: Morse Taper 4 (MT4)
• Material: HSS (High-Speed Steel)
• Standard: DIN 345
• Total length: 355 mm
• Flute length: 205 mm
• Point angle: 118°
• Surface finish: Bright
• Cutting direction: Right-hand cut
• Number of flutes: 2
• Tolerance: h8
• Manufacturing process: Ground from solid

Why choose it

This twist drill bit is ground from solid HSS for precise geometry and long tool life. The Morse taper shank provides a self-locking fit in the machine spindle, reducing slippage under high torque. Suitable for general-purpose drilling in metals and plastics.

Ideal use cases

• Drilling large holes in steel and cast iron
• Machining operations on lathes and milling machines
• Maintenance and repair workshops

Good to know

DIN 345 specifies dimensions for Morse taper shank twist drills with a cylindrical cutting part. The bright finish offers a clean surface and good chip evacuation. Always use appropriate cutting fluid for best results in steel.