The Makita Auger Bit 200 x 12mm (L x Dia) Polished is used to drill holes into wood which is commonly used for boring holes into bulkheads and general timber applications. The auger drill bits come with a spiral drill bit head which, when drilling, is designed to pull the bit into the wood thereby reducing man power. The drill bit offers extremely efficient drilling into large holes in hard or soft wood. The auger drill bits are suitable for cabinet making, joinery and carpentry. The drill bit offers extremely efficient large holes into hard or soft wood and it is suitable for cabinet making, joinery and carpentry.