RUKO FLS-DIN373-mittel-M14-MK2 Counterbore DIN 373 M14 Morse Taper 2 HSS-G

Counterboring for cylindrical head screws can be challenging without the right tool. This RUKO counterbore solves that by precisely machining flat-bottom recesses for M14 screws, ensuring a clean, professional finish in steel, cast iron, and non-ferrous metals.

Who is it for

Machinists, metalworkers, and maintenance technicians who need to create accurate counterbores for DIN 974-1 cylindrical head screws in medium to large workpieces.

Main features

• DIN 373 standard counterbore for M14 screw size
• Morse Taper 2 (MK2) shank for secure tool holding
• High-speed steel (HSS-G) body with ground finish
• Three flutes for efficient chip evacuation
• Pilot diameter 14 mm with h8 tolerance for precise alignment

Specifications

• Tool Type: Counterbore
• Standard: DIN 373
• For Screw Size: M14
• Cutting Diameter (d1): 22 mm
• Pilot Diameter (d2): 14 mm
• Shank Type: Morse Taper 2 (MK2)
• Material: High-Speed Steel (HSS-G)
• Surface Treatment: Ground
• Number of Flutes: 3
• Total Length (l1): 150 mm
• Cutting Length (l2): 38 mm
• Application: Counterboring for cylindrical head screws (e.g., DIN 974-1)
• Manufacturing Method: Ground from solid
• Recommended Materials: Steel, Cast Iron, Non-ferrous metals
• Direction of Rotation: Right-hand
• Pilot Tolerance: h8
• Coating: Uncoated
• Length Type: Medium

Tips

Use appropriate cutting fluid and moderate speeds for best results in steel. Ensure the Morse taper socket is clean before mounting to prevent runout.