Interior brushes are particularly suitable for deburring recesses and holes in O-rings and for cleaning, smoothing and derusting. They are used in conjunction with drilling machines, flexible shafts and machining centres.The particular purposes of tube cleaning brushes are to derust, clean and descale the insides of tubes. They are used for manual processing and in flexible shafts and static machines. Kumex brushes are elastic, flexible brushing tools. At the bristle tips they hold globules made from bonded abrasives. This special construction enables the tools to deburr cross-holes and also to improve adherence of lubricants. Special types with flat pressed wire can be supplied to order.