The Alpen 20.0mm x 460mm Wood Auger Drill is designed for larger drilling tasks in square timbers and wood jambs. It includes highly accurate centring and sharp cutting edges for optimal performance. Brand: Alpen Diameter: 20.0mm Working Length: 380mm Overall Length: 460mm Application: For drilling in square timbers and wood jambs Highly accurate centring for precise results Sharp cutting edges ensure clean and efficient drilling