For the perforation in soft areas where the ring bits of buttons do not penetrate, Krham makes ring bits TC-plates, that facilitate a precise perforation to a suitable pace in the conditions for those who are well-considered.
Even if in catalogue, the maximum measure of the diameter of the casing crowns with TC-plates that Krham makes are 265mm, under request, ring bits with TC-plates of the measure that the client needs can be made, and with specific characteristics depending on their needs.





