Professional flap discs for commercial or occasional use Zirconium flap discs Suitable for use on wood, metal, plastic and virtually all different types of materials Perfect for removing rust, grinding of welds, parting lines on casting and carbon steels or removing edges on most surfaces 120 grit zirconium discs 120 grit so a relatively smoother disc for taking a smaller amount of paint and rust off with a little bit more control Suitable for use with a 4-1/2" (115mm) angle grinder with a 14mm thread Zirconium discs are a lot longer lasting than normal flap discs The high grade adhesion is for a long life which outlasts conventional sanding discs Fits directly onto an angle grinder This listing is for a pack of 100 discs Goggle should always be worn when using this tool SPECIFICATIONS • 120 Grit • Zirconium flap discs • 115mm x 22.2mm / 4-1/2" x 7/8" • Max speed 13,000 RPM • Quantity - 100pc (individual discs)