The new DRONCO polishing flap disc consisting of an innovative, highly effective grinding fleece in fan-shaped flap structures, giving outstanding results on the processing of stainless steel, aluminium and non-ferrous metal. Ideal for repolishing welding seams or for preparing surfaces for painting. Depending upon your requirements, the DRONCO polishing flap discs are outstanding for: De-scaling and de-rusting of work pieces, Preparing, re-polishing and smoothing of welded seams, Preparation of painted surfaces, Polishing of stainless steel, Cleaning of surfaces of various materials. Best results for descaling and derusting material.