Uxcell 45mm Diameter Woodworking Drill Tool Hinge Boring Forstner Bit Product Name: Hinge Boring Bit Material: Metal; Borer Drill Diameter (Approx.): 45mm/1. 77" Shank Size (Approx.): 9mm x 65mm /0. 35" x 2. 56"(D L) Total Length: 80mm/3. 15"; Weight: 96g Package Content: 1 x Hinge Boring Bit