The black and decker a7186 new family accessory 16 piece set contains various drill bits suitable for drilling wood masonry and metal contents 2 x brad wood drill bits 4mm and 6mm 3 x masonry drill bits 5mm 6mm and 8mm 3 x metal drill bits 4mm 6mm and 8mm7 x 25mm screwdriver bits 3 x torx 2 x slotted and 2 x pozidriv1 x magnetic bit holder