Uxcell 19mm Cutting Diameter Metal Drilling Wood Hinge Boring Bit Product Name: Hinge Boring Bit; Suitable for: Wood Borer Drill Diameter: 19mm / 0. 748" Shank Diameter: 7mm / 0. 275"; Total Length: 77mm / 3. 03" Material: Metal; Weight: 73g Package Content: 2 Pcs x Hinge Boring Bit