Home / Abrasives and Finishing Products / Surface Prep/Sanding / Grinding Wheels / 100 PK Depressed Center Type 27 Grinding Wheels – Hubless. 4 1/2″ x 1/4″ x 7/8″ – 24 Grit 100 PK Depressed Center Type 27 Grinding Wheels – Hubless. 4 1/2″ x 1/4″ x 7/8″ – 24 Grit $287.07 Part Number: SDP452-100 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 1/2" x 1/4" x 7/8" - 24 Grit quantity Add to cart UPC: 682488076854 Category: Grinding Wheels Tag: 4 1/2" x 1/4" x 7/8" Related products 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 4 PK | 4″ Type 27 Aluminum Oxide Grinding Wheels Depressed Center – Hubless, 36 Grit – 4″ x 1/8″ x 5/8″ $11.78 Part Number: 12731Add to Cart 5 PK Depressed Center Type 27 Silicon Carbide Grinding Wheels – Hubless. 4.5″ x 1/4″ x 7/8″ – A24R Grit $26.70 Part Number: 12648Add to Cart 25 PK 4″ Type 27 Aluminum Oxide Grinding Wheels Depressed Center – Hubless, 24 Grit. 4″ x 1/4″ x 5/8″ $82.14 Part Number: 12733Add to Cart