RUKO Countersink DIN 373 HSS-E M10 Morse Taper 2

Creating a precise, clean countersink for M10 cylindrical head screws in tough materials can be challenging with standard bits. This RUKO countersink solves that problem by providing a ground, high-performance tool that produces accurate 90° chamfers in steel, cast iron, and non-ferrous metals.

Who is it for

Machinists, metalworkers, and maintenance professionals who need a reliable countersink for socket head cap screws or similar fasteners in materials up to 1000 N/mm². Ideal for both manual and machine applications where a Morse Taper 2 shank is used.

Main features

• Manufactured to DIN 373 for consistent geometry and performance.
• Made from HSS-E (cobalt high speed steel) for enhanced heat and wear resistance.
• Three flutes provide smooth cutting and efficient chip evacuation.
• 90° cutting angle suits standard cylindrical head screws.
• Morse Taper 2 shank ensures secure mounting and concentricity.
• Bright finish reduces friction and improves chip flow.

Specifications

• Tool Type: Countersink
• Standard: DIN 373
• Material: HSS-E (Cobalt High Speed Steel)
• Shank Type: Morse Taper 2 (MK2)
• Pilot Diameter (d1): 10.5 mm
• Countersink Diameter (d2): 18.0 mm
• Overall Length (l1): 165 mm
• Cutting Length (l2): 35 mm
• Designed for Screw Size: M10
• Number of Flutes: 3
• Cutting Angle: 90°
• Surface Finish: Bright
• Application: For creating precise countersinks for cylindrical head screws (e.g., socket head cap screws)
• Suitable Materials: Steel (alloyed and unalloyed), Cast Iron, Non-ferrous metals, Plastics
• Max Material Hardness: Up to 1000 N/mm²
• Manufacturing Process: Ground profile for high precision and cutting performance
• Cooling Recommendation: External cooling recommended for optimal tool life
• Packaging Unit: 1 piece
• Compliance: Manufactured according to DIN 373
• Product Series: RUKO 102105E

Tips

Use a suitable cutting fluid or coolant to extend tool life and achieve a better surface finish. Ensure the Morse taper socket is clean before mounting to maintain accuracy.