Zinc plated. We are currently working towards building up a craft and hobbyist range of goods and tools. we also allow out of hours collections but you do need to call us before 4 pm to arrange this.
OK if you are prepared to put some time and work in. Not the best quality.
This set is good value when compared to buying the drivers individually however, each of the drivers in the set I received was stuck together, due to the locating pins having rusted. Also, the machining is a bit rough, would recommended deburring the edges with a file.
The locating pins are probably mild steel, which means they bend easily. Be careful when prizing them apart.