4-Inch Stainless Steel Shank with 1/4-Inch Bore
Climax Metal LC-025 Steel Set Screw Collar, Lightweight Zinc Plating, 1/4" Bore Size, 1/2" OD, With 8-32 x 1/8 Set Screw
DEWALT DW4523 4-1/2-Inch by 1/4-Inch by 5/8-Inch General Purpose Metal Grinding Wheel
Climax Metal 1C-050-Z One-Piece Clamping Collar, Zinc Plating, Steel, 1/2" Bore, 1-1/8" OD, 13/32" Width