Outer Dia. (mm) | Hole Dia.(mm) | Size for flap disc(mm, inch) | Type | Surface material | Layers | Metal Rings | |
75mm | 16.3 | 100x16 | 4x5/8 | T27, T28, T29, T41 | Black paper, Woven cloth, Non-woven cloth | 6-9 | Single ring Double rings No metal ring Single ring with bend High washer ring Marked ring |
90mm | 16.3 | 100x16 | 4x5/8 | 6-12 | |||
95mm | 16.3 | 100x16 | 4x5/8 | 6-12 | |||
107mm | 22.23 | 115x22 | 4-1/2X7/8 | 6-12 | |||
117mm | 22.23 | 125x22 | 5x7/8 | 6-12 | |||
140mm | 22.23 | 150x22 | 6x7/8 | 8-12 | |||
170mm | 22.23 | 180x22 | 7x7/8 | 8-15 | |||
220mm | 22.23 | 230x22 | 9x7/8 | 10-15 |