Sterile Processing Directs Dual Head Stainless/Nylon Decontamination Brush is the decontamination brush of choice for heavy instruments. The DSBR3 is designed for the cleaning of broaches, reamers, greater and knurled instruments. The stainless side is not to be used on Laparoscopic, Eye, and delicate instruments.The DSBR3 is a solid multi purpose brush.