21-1701 - 3M CARTRIDGE ROLL- REGULAR. 1/2 X 3/4" 60G BX/100


  • A practical method for finishing inside and blind holes.
  • Use with cartridge mandrels .
  • When the upper layer wears away, the layer beneath gets exposed to continue the smoothing process.
  • Max speed- 15,000 rpm
  • use cartridge roll mandrel. 21-2723
  • Item #: 21-1701
    • Sale
    • Regular price $26.46