The Bordo range of auger bits are available in short, medium and long series lengths.Features: Fully heat treated to increase durability and protect against bending in heavy duty drilling applications; Single spur scribes hole edge and ensures a smooth hole finish; Coarse screw point provides fast starting in all wood types; Solid centre design provides increased bit rigidity; Optimised flute grind ensures fast chip removal improving speed and finish; Hex shank ensures a positive lock in chucks and extensions; Specifications:Diameter12 mmOverall Length500 mmShank3/8" (nominal) Hex