PFERD 41590 Untapered Cartridge Roll, Aluminum Oxide A, 1/2" Diameter x 1-1/2" Length, 1/8" Arbor Hole, 80 Grit, 18000 Max RPM (Pack of 50) sold2025 American pattern files have three

American pattern files have three coarseness grades

wet granite polishing

non-ferrous materials

which is sintered together under high pressure and temperature

Multi-purpose design for blasting and high pressure liquid or air cleaning of parts and surfaces

PFERD 41590 Untapered Cartridge Roll, Aluminum Oxide A, 1/2" Diameter x 1-1/2" Length, 1/8" Arbor Hole, 80 Grit, 18000 Max RPM (Pack of 50) sold2025 American pattern files have threePFERD 41590 Untapered Cartridge Roll, Aluminum Oxide A, 1 2" Diameter x 1 1 2" Length, 1 8" Arbor Hole, 80 Grit, 18000 Max RPM (Pack of 50) PFERD POLIROLL Untapered cartridge roll consist of a coated abrasive wound in a spiral. The abrasive grain is embedded in the resinoid coating on the strong cloth backing material for maximum abrasive performance. Self clamping due to a grooved conical arbor ensures that the cartridge rolls remain securely