Zirconia Alumina(Z/A) Flap Disc HIGH PERFORMANCE ON SURFACE CONDITION Zirconia Alumina(Z/A) Flap DiscItem No.SA28004-Type:Type 27\29T27-Flat wheels is the optimum tool for grinding at an acute angle(0-15')T29-Conical wheels produce optoimum results at greater angles of attack915-30')-Size:standard size(DiaxHole)100x16mm ,115x22mm,125x16mm, also accept customized size-Max. Speed:1220,443200,15200 ...