Pferd Inc. added to its SG Polifan Z SG Power Steelox flap disc line with a 6-in. (Type 29) disc in 40 and 60 grit in 7/8 in. arbor and 5/8-11 hub versions. Offering consistent performance throughout the entire life of the flap disc, the zirconia alumina Z abrasive handles demanding grinding work, delivering good stock removal on high- power angle grinders even at higher contact pressures. The flap discs are specified for use on steel and stainless steel. They are for work on weld seams, chamfering, blending and deburring.