Grommet Tool Kit includes 300 sets each of #0/#2/#4 solid brass grommets and washers, rust-proof for outdoor use on fabrics, leather, denim, tarps, canvas, vinyl Achieve precise holes with punch tool, set grommets and washers to machine Features rust-proof aluminum body for durability, non-slip long handle enables comfortable one-handed punching Stainless steel dies withstand continuous punching for extended lifespan Ideal for custom crafts, apparel, leather bags, shoes, belts, curtains, banners, signs, posters, prints