RUKO FLS-DIN373-HSS-TiN-M10x Countersink Drill Bit, M10, 90°, TiN Coated

This RUKO countersink bit stands out with its TiN coating, which reduces friction and extends tool life when working in steel or cast iron. The three-flute design produces clean, chatter-free countersinks for M10 screw heads.

Highlights

• DIN 373 standard geometry for precise 90° countersinks
• HSS body with titanium nitride (TiN) coating for wear resistance
• Three cutting edges for smooth results in metals and plastics
• Parallel shank fits standard drill chucks

In daily use

The bit is intended for stationary machines such as pillar drills and lathes, where its pilot diameter of 10.2 mm guides the tool accurately into pre-drilled holes. It is suitable for steel, cast iron, non-ferrous metals and plastics.

Full specifications

• Tool type: Countersink drill bit
• Standard: DIN 373
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Nominal screw size: M10
• Countersink diameter (d1): 18.0 mm
• Pilot diameter (d2): 10.2 mm
• Shank diameter (d3): 10.0 mm
• Overall length (l1): 63 mm
• Pilot length (l2): 18 mm
• Countersink angle: 90°
• Number of cutting edges: 3
• Shank type: Parallel shank
• Suitable materials: Steel, cast iron, non-ferrous metals, plastics

Final note

Choose this RUKO countersink when you need consistent, accurate countersinks in demanding workshop environments.