Type 27 flap discs should be used at 0°-15° angle and Type 29 flap discs should be used at 15°-25° angle to the workpiece. Do not use flat or on the edge.
Flap discs are constructed of overlapping abrasive-coated flaps attached to a central hub. As the disc is used, the flaps continually wear away to expose a new...
71985 Flap Disc, Type 29 (Designed. Flap Disc, Type 29 (Designed for Grinding and Finishing), 4-1/2 in x 7/8 in, ZA40. $9.99 ; 71983 Quick Change Flap Disc, 80 G.
Product variety is complete, good quality and inexpensive, the delivery is fast and transport is security, very good, we are happy to cooperate with a reputable company!