The felt flap discs are made of 100% wool felt and with fibreglass backing, medium hardness.
Used on 4.5 Inch angle grinder for final high polishing of stainless steel, aluminum, glass and other materials.
This kit with 4 pcs 4.5 Inch felt flap disc and 1pc 100g bar all-purpose blue polishing compound.
Details of the felt flap disc: 4.5 Inch diameter, 7/8 Inch arbor hole, with 28pcs felt block; felt block size 28mm20mm4mm; T27 type; radial felt flap disc with medium hardness.