• Point thinning according to DIN 1412 C
• Cutting edge has thinning point
• Right hand cutting
• Spiral grooved
• 118 pointed angle
• 90 stepped angle
• 1/4″ external hexagon drive adaptor to DIN 3126 – C 6,3
• Absolute smooth operation
• High cutting achievement
• Surface without discolouration
• High performance steel

The cone simplifies the retracting through bored sheet metals. Breaking chips and swarf are taken away. The construction of the cutting edges and cold welded joint in the edges blunting is thereby prevented.