Snap-on Tools USA NEW 16pc Mix Drive SAE & Metric Stubby Hex Bit Socket Sets is a set of 16 sockets with hex/allen drive type and a surface finish of chrome. The set includes both SAE and metric sizes ranging from 1/8in. And 3mm up to 10mm respectively. The sockets come in a mix drive size of 1/4in. And are manufactured by Snap-on with part numbers 208EFTAXSY and 208EFTAMXSY.