This high-quality 13-piece bushing set from RS PRO was developed for professional use and is made of high-quality chrome vanadium steel. The parts are made in chrome and equipped with a practical socket strip for easy storage. They are designed for 1/2" square drives. With its choice of socket wrenches, this kit is a compact and reliable resource for any professional or DIY toolbox. This kit allows you to always work comfortably, whether tightening, loosening or adjusting at home or at work. The deep size of these bushes is practical to reach countersunk screws. Assortment contains: 13 pieces - 1/2" deep bushes, size: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24 mm.