SD478, 4 1/2" Replacement Shrinking Disc, english wheel shrinker tool
$40
(backing pad required). SD4Kit - Fits standard 4 1/2" grinders that have 5/8" - 11 spindle thread & use discs with 7/8" holes. Contents - SD478 Disc, Backing Pad, Nut, Spacer & Instruction Manual (Need a different thread size?. ).
