The wood twist drill bit is made of HSS tool steel, which guarantees a long service life. The drill bit is hard-hardened to withstand heavy loads due to uneven rotation with cordless screwdrivers. The twist drill has a hexagonal BIT attachment that ensures a stable attachment to the drill chuck. The twist drill is made in one piece, which makes it very stable. The drill is hard-hardened to withstand high loads due to uneven rotation with cordless screwdrivers The twist drill has a hexagonal BIT attachment that ensures a stable attachment to the drill chuck The twist drill is made in one piece, which makes it very stable. Suitable for: Terraces.Pre-drilling to the screw. Uniform countersunk hole every time. The depth stop leaves no marks. The perfect tool for pre-drilling, countersinking or reaming for dowels in one step