The Alpen 20.0mm x 600mm Wood Auger Drill provides precision for drilling large holes in square timbers and wood jambs. It features highly accurate centring and sharp cutting edges for effective performance. Brand: Alpen Diameter: 20.0mm Working Length: 530mm Overall Length: 600mm Application: For drilling in square timbers and wood jambs Highly accurate centring for precise results Sharp cutting edges ensure clean and efficient drilling