Vintage Sioux Valve Seat Grinding Wheels K-493 K-423 Set of 2 With Original Boxes USA

Vintage Sioux Valve Seat Grinding Wheels K-493 K-423 Set of 2 With Original Boxes USA

Vintage set of two Sioux valve seat grinding wheels by Albertson & Company of Sioux City, Iowa. This matching pair includes one K-493 roughing wheel and one K-423 finishing wheel, both 30 degree, No. 2 hole, 15/16 inch. Each wheel comes in its original Sioux Tools box with period graphics, making this a great set for collectors of vintage automotive tools, machinist equipment, or garage memorabilia. Ideal for display, restoration, or use with compatible Sioux valve seat grinding equipment.

Condition
Good vintage condition. Both grinding wheels appear unused or lightly used and remain in their original boxes. Boxes show age-related wear, discoloration, creases, and edge wear from storage. Please review all photos for condition details.

Size
Grinding wheels measure approximately 15/16 inch
30 degree angle
No. 2 hole

Materials
Grinding stone
Metal
Cardboard

Colors
Gray
Red
Yellow
Brown
Blue

Estimated Age
1940s-1950s

Disclaimer: AI-generated images may appear at the end of the photo lineup for styling purposes only and may not exactly represent the item. Photos of the actual item are included. Vintage pieces may show age—please review all photos and details carefully.