Article by: Guehring (Thailand) Co., Ltd. & MEGA Tech
The axial and radial forces that occur during countersinking operations are strongly reduced due to the newly developed geometry of the SpyroTec cutting edges. Also, with hand drills an easy and convenient countersinking is guaranteed. Due to convex different radii of the cutting edges with variable helical pitch provide a stable and low-vibration countersinking process. Round, precise and chatter-free countersinking is guaranteed. The specially designed TiAIN coating ensures a higher wear resistance and high-temperature hardness which guarantee longer tool life for nearly all materials and applications.
• included in the standard programs:
» 90° countersink to DIN 335 form C
» 60° countersink to DIN 334 form C
» 82° countersink to company std. form C
• available on request as a special tool with 120° countersink point angle
• version with straight shank or 3-flats on shank
• overlong parallel shank version

CONVEX CUTTING EDGES: Three different convex cutting edges in combination with three unequal helix angles enable extremely stable and low-vibration cutting processes without any chatter marks.
TiAlN COATING: The titanium-aluminum coating is characterised by a strong hardness and a good thermal resistance.
CUTTING MATERIAL: High-quality high-speed steel provides a good high-temperature hardness and temper resistance. This guarantees a long tool life and the cutting material enables machining of nearly all materials.
SpyroTec 82°
For the production of countersinks for the common 82° screw heads in english-speaking countries, e.g. USA or GB, in order to countersink the screw head in the component.
SpyroTec 90°
For the production of countersinks for the most common 90° screw head designs in order to countersink the screw head in the component. For universal deburring of holes on any components.
SpyroTec 60°
For the production of countersinks for 60° screw head designs in order to countersink the screw head in the component. For the production of 60° countersinks on special components.
For universal deburring of holes on any components.
SpyroTec 120° – Special Tool
For the production of countersinks for 120° sheet metal rivets and 120° countersinks on special components.