Professional 20mm Forstner bit for commercial or occasional use 20mm wide Forstner bit 8mm shank Suitable for cutting / drilling in wood work when a clean precise hole is required Bores very precise flat bottom holes in wood Ideal for when a specific depth of mortise is needed Can cut on the edge to a block of wood and can also cut overlapping holes The bits have a centre point which gives a centre point start and guides it during the cut which allows accurate results each time Great for any woodworking or craft work that requires precision holes Manufactured from chrome vanadium steel for maximum strength and durability Suitable for use with any type of drill