1. 4 1/2" zircon flap disc 2. Size: from 4" to 7" 3. ... Angle: T27(0°- 15°)4 1/2" zircon flap disc glass fiber back Product features:1. Flat design( ... , fit for heavy duty grinding. The plastic cover grinding wheel, different from other products of the kind, is characterized ... Abrasives Co., Ltd, and we specialize in flap disc, flexible flap disc, mounted flap wheel, sanding bands, etc, for more than 10 ...