Solid carbide drill diameter 4,2mm to remove jammed taps M5

It is the perfect tool to drill and destruct broken taps. Lubrication: Dry or wet. Speed: 100–1500 r/min. The workpiece has to be clamped very solid and safe. The overlapping part on the tap has to be made plane with the workpiece. The remove of tap can be made with an NC machine with lubrication (Attention: risk of stick together) also by hand with a bench drilling or column.