Woodpeckers Precision Woodworking Tools CDDJ14716 Cross Dowel Jig Precision machined cross dowel drilling jig makes using cross dowels easier than ever Eliminates costly misaligned holes or incorrect spacing Features solid aluminum body with stainless steel guide bushings Woodpeckers drill guide features two screw length offsets for different dowel locations, 3/4-inch and 1-inch Properly created cross dowel joints have incredible clamping force and great shear strength