RUKO FLS-DIN373-Kernloch-M10-MK2 Counterbore, M10, Morse Taper 2, HSS

Creating precise counterbores for cylindrical-head screws in metal is a challenge without the right tool. The RUKO FLS-DIN373-Kernloch-M10-MK2 counterbore solves this by delivering clean, accurate recesses for M10 screws with cylindrical heads, such as hexagon socket head cap screws. Manufactured to DIN 373, it ensures compatibility with standard screw dimensions and provides reliable performance in steel, cast iron, and non-ferrous metals.

Who is it for

This counterbore is ideal for machinists, metalworkers, and maintenance professionals who need to produce counterbores with a Morse Taper 2 shank. It fits directly into drilling machines or lathes with an MK2 spindle, eliminating the need for additional adapters.

Main features

• Conforms to DIN 373 for M10 screws with cylindrical heads
• Counterbore diameter: 17 mm; pilot hole diameter: 11 mm
• Morse Taper 2 (MK2) shank for secure tool holding
• Made from high-speed steel (HSS) with bright finish
• 3 flutes, right-hand cutting, ground for precision
• Overall length: 125 mm

Specifications

• Tool Type: Counterbore
• Standard: DIN 373
• Screw Size Compatibility: M10
• Shank Type: Morse Taper 2 (MK2)
• Counterbore Diameter (d2): 17 mm
• Pilot Hole Diameter (d1): 11 mm
• Pilot Diameter (d3): 11 mm
• Material: High-Speed Steel (HSS)
• Number of Flutes: 3
• Cutting Direction: Right-hand
• Overall Length: 125 mm
• Surface Finish: Bright
• Suitable Materials: Steel, Cast Iron, Non-ferrous metals
• Manufacturing Process: Ground

Tips

Use appropriate cutting fluid and correct speeds for the workpiece material to extend tool life and achieve a smooth finish. Ensure the Morse taper is clean and properly seated before operation.