TORMEK -  Sharpening the complex tip geometry of a drill by hand requires plenty of practice. Using the Tormek drill bit sharpener attachment, you can now sharpen a 4-facet drill bit with the usual wet-grinding method on your drill for maximum precision and service life. The optimum point and clearance angles can be set for any drilling operation with regard to the size of the drill and the material to be worked on. Even drills which are completely blunt and have their tips broken off can be returned to the perfect shape through sharpening. Point angles 90-150°.