1) 30pcs HSS twist drills 2) 8pcs wood working drills 3) 6pcs masonry drills 4) 5pcs flat wood drills 5) 4pcs bits stopper 6) 1pc counter sink 7) 1pc hex key: 2.5mm 8) 5pcs 25mm bits: slotted：4, 4.5, 5, 6, 7mm 9) 3pcs 25mm bits: PH1, PH2, PH3 10) 3pcs 25mm bits: PZ1, PZ2, PZ3 11) 4pcs 25mm bits: H3, H4, H5, H6 12) 5pcs bits: T15, T20, T25, T27, T30 13) 4pcs 50mm bits: slotted：4, 5, 6, 7mm 14) 3pcs 50mm bits: PH1, PH2, PH3 15) 3pcs 50mm bits: PZ1, PZ2, PZ3 16) 1pc quick change connector 17) 4pcs hole saws 18) 1pc hole saws mandrel 19) 9pcs power nut drivers