The Vintage Eastwood 4PC Deburring / Grinding Bit Set features high-quality, durable bits made in the USA with a 1/4 shank size. Designed by the reputable brand Eastwood, these bits are perfect for automotive tools and supplies, specifically for deburring and grinding tasks. The set includes four pieces, providing versatility and efficiency for various projects. With a focus on precision and performance, this bit set is a valuable addition to any workshop or tool collection.