8-pcs auger bit set in aluminium box. Including sizes 6,8,10,12,14,16,18 and 20mm with total length of 235mm. Tamo auger bit can be used for both soft and hard wood. Tip of the bit is designed to pull the bit into the wood so that you don't need to press heavily and drilling is smooth. Due to hex-shaped shank, product is tightly attached into the chuck. Can be used with all power drills, also with impact drills.