These tools have a metall coated, top quality synthetic diamond grit embedded in the erosion matrix which is adapted in hardness to the material to drill.
As standard three different impregnation heights are available: 4, 6 and 7.5 mm.
Two profiles are available. These are the flat profile and the V-profile with radial slots in front of the cutting area.
Standard is a diamond concentration C 50 (= 2.2 ct/cm³).