About This

Uses premium zirconia grains. Each disc performs fast, smooth grinding and a long life.
10 PACK OF DISCS – This is a ten pack of 4inch zirconia alumina, fiberglass backed flap discs.
ZIRCONIA FLAP DISCS – Our durable fiberglass backers are designed to handle high pressure and absorb vibration, giving the user a balanced, smooth grind.
PROFESSIONAL PERFORMANCE – We use premium grains and cloth sourced from all around the world. Each flap disc is 4” x 5/8” and can should be used with a compatible angle grinder.
Signi heavy-duty high strength flap discs for 4-inch angle grinders， with four different grits, ranging from coarse(40#) to fine(120#). These flap discs are made with a durable fiberglass backing , can bring a smooth grind with minimal vibration. It can be used for all types of metal and steel.