Rub collar for 1-1/4" Arbor only!, #SC522, (D) diameter: 5-1/2, (D) bore: 1 & 1-1/4, (a°) angle: 7°, (B) Cutting height: 5/8, (r) radius: 5/32, C: 1-1/2, Optional rub collar: c-017sc522 carbide Tipped 3-Wing classical raised panel 7 deg X 9/16 radius x 5-1/2 dia x 5/8 x 1 & 1-1/4 bore For 5/8 material