Home / Abrasives and Finishing Products / Surface Prep/Sanding / Grinding Wheels / 100 PK Depressed Center Type 27 Grinding Wheels – Hubless. 4″ X 1/4″ X 5/8″ 24 Grit 100 PK Depressed Center Type 27 Grinding Wheels – Hubless. 4″ X 1/4″ X 5/8″ 24 Grit $222.52 Part Number: SDP404-100 Vitrified, aluminum oxide double fiberglass reinforced wheels designed for strength and cutting action when working on steel and non-ferous metals. 100 PK Depressed Center Type 27 Grinding Wheels - Hubless. 4" X 1/4" X 5/8" 24 Grit quantity Add to cart UPC: 682488076786 Category: Grinding Wheels Tag: 4" x 1/4" x 5/8" Related products 3 PK | 4.5″ Type 27 Aluminum Oxide Grinding Wheels Depressed Center – Hubless, 24 Grit. 4.5″ x 1/4″ x 7/8″ $12.16 Part Number: 12734Add to Cart 25 PK Depressed Center Type 27 Grinding Wheels for use on Masonry 4″x 1/4″ x 5/8 $84.16 Part Number: 12743Add to Cart Grinding Wheels Type 27- Zirconia 7″x 1/4″ x 5/8-11 – 24 Grit $21.05 Part Number: 12643Add to Cart 7″ Type 27 Aluminum Oxide Grinding Wheels Depressed Center – Hubless, 24 Grit. 7″ x 1/4″ x 7/8″ $7.42 Part Number: 12738Add to Cart