The diameters are supplied standard with a tolerance h5, from Ø 1 mm to Ø 3mm = 0 / -0.004 mm.
For those who do not have the possibility to use internal refrigeration, TUSA has developed a specific range of high performance drill (TTD203 and TTD207
), ie the TTD without coolant holes.
To guarantee a safe drilling process we recommend to use the MTB27 pilot drill
, we also always recommend to follow the drilling method and the indicative parameters for drilling with TUSA TOP DRILL.