Astro  7129 Multiple Head Socket Wrench, Metric 8 in 1 design with 8 socket sizes: 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm and 19mm Ideal for drain plugs Swivel heads rotate at all angles Built-in magnet allows wrench to be hung so that it is always handy and/or holds oil plugs, nuts, etc. so that they are not lost