PFERD offers a wide range of coated and non-woven abrasive tools for face-down grinding, belt grinding, peripheral grinding, surface conditioning, polishing, and much more.

PFERD POLISTAR-TUBE Coated Abrasive Star, 2-1/4 in Star Diameter, 4 mm Eyelet Size, 120 Grit, Fine Grade, Aluminum Oxide Abrasive, Applicable Materials: Metal, 6350 rpm Maximum

• POLISTAR-TUBE is made up of several layers of grinding stars riveted together
• The grinding stars may be used with 1/4 in shank drive arbors or with PFERD's flexible shafts
• Ideal for step-by-step cleaning and finishing of inner surfaces and pipe bends, rounding off pipe ends and deburring bore holes, use in straight pipes and deep bore holes
• Extremely flexible
• Very high quality surface finishes up to Ra 0.2 um can be achieved
• To prevent corrosion forming on stainless steel (INOX) pipes, POLISTAR-TUBE is made using stainless steel rivets
• Suitable for 1-5/8 to 1-3/4 in inner Dia pipes
• Used especially for working the inside surfaces of pipes and pipe bends

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/PFERD_46076_Catalog.pdf https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/PFERD_46076_Catalog.pdf
• VIDEO LINK https://www.youtube.com/watch?v=sGbD7e5xwMU