RUKO SPB-DIN345 12.0mm HSS-E Morse Taper Shank Twist Drill Bit

In metalworking shops and industrial maintenance, drilling precise 12 mm holes in tough materials demands a tool that can handle high stress. The RUKO SPB-DIN345 12.0mm HSS-E twist drill bit is built for exactly that. With a Morse taper shank (MK1) for secure machine mounting, it delivers reliable performance in steel, stainless steel, cast iron, and non-ferrous metals up to 1100 N/mm² tensile strength.

Key specifications

• Drill bit type: Twist drill bit
• Standard: DIN 345
• Material: HSS-E (High-Speed Steel with 5% Cobalt)
• Drill diameter: 12.0 mm
• Shank type: Morse Taper Shank, size MK1 (MT1)
• Total length: 184 mm
• Flute length: 98 mm
• Point angle: 130°
• Surface finish: Bright
• Tolerance: h8
• Cutting direction: Right-hand cut
• Manufacturing process: Ground from solid

Why choose it

The cobalt-alloyed HSS-E steel offers improved heat resistance and wear life compared to standard HSS. The Morse taper shank ensures a firm, concentric grip in machine spindles, reducing vibration and improving hole quality. Ground from solid, the flutes are precise and sharp for efficient chip removal.

Ideal use cases

• Drilling structural steel and alloy steels in fabrication
• Maintenance and repair work on stainless steel components
• Machining cast iron and non-ferrous metals in job shops
• Production drilling where consistent diameter and finish are required

Good to know

This drill bit is supplied as a single unit. It is intended for use with machines that accept Morse taper shank tooling, such as pillar drills and lathes.