33pcs drill bits and screwdriver combination set used for iron, wood, wall function consists of:
7pcs hss-r steel drill bit (2mm, 3mm, 3mm, 3.3mm, 4mm, 4.2mm, 5mm)
5pcs 4mm 5mm 6mm 7mm 8mm tc concrete drill bit set
6pcs 3mm, 4mm, 5mm, 6mm, 7mm, 8mm woodworking drill bit
3pcs 7mm 8mm 10mm hex shank screwdriver bit set
10pcs 25mm (plus / philips 1 / 2 / 3, min / slotted 4 / 6 / 7, pozidriv 1 / 2, torx t20 / t25) screwdriver bits