High Density Discs - Plastic Backing,Ovation? Plus High Density Flap Disc - Type 27, 7/8 Arbor - No Hub 72203 - Strobels Supply
Forney 4-1/2 In. x 7/8 In. 36-Grit Type 27 Blue Zirconia Angle Grinder Flap Disc - Power Townsend Company
3M Green Corps Flexible Grinding Wheel - Metal Grinding Wheel for Angle Grinder - Ceramic Grain - Type 27 - 4.5" x 1/8 x 7/8": Amazon.com: Industrial & Scientific
TrimBack Flap Discs,TrimBack Type 27 Regular Density Flap Disc, 5/8-11 Hub 70961 - Strobels Supply
DIABLO 4-1/2 in. x 1/4 in. x 7/8 in. Masonry Grinding Disc with Type 27 Depressed Center DBD045250701C - The Home Depot
Type 1 vs Type 27 vs Type 29 vs Type 28 Grinding Wheels - Benchmark Abrasives