Countersink tools have been around the engineering environment for what seems like ever. Guhring has gone to the trouble of reinventing some very old technology and put a new spin on it with new convex cutting edge and a special coating.
Due to the completely new geometry of the cutting edges and the flute form Gühring has developed the outstanding countersink Spyrotec.
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
