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 10 PK 9″ Type 27 Aluminum Oxide Grinding Wheel – 1/4″ x 7/8, 24 Grit $105.54 Part Number: 12740Add to Cart 9″ Type 27 Aluminum Oxide Grinding Wheel – 1/4″ x 7/8, 24 Grit $10.87 Part Number: 12739Add to Cart 25 PK | Depressed Center Type 27 Grinding Wheels for use on Masonry 4.5″x 1/4″ x 7/8 $89.73 Part Number: 12745Add to Cart 10 PK 7″ Type 27 Aluminum Oxide Grinding Wheel – 1/4″ x 7/8, 24 Grit $61.85 Part Number: 12741Add to Cart