uxcell Carbide Tipped 20mm Diameter Hinge Boring Bit Blue Silver Tone UXCELL (U excel !) is the sole authorized Seller of uxcell products Product Name : Hinge Boring BIt;Drilling Diameter : 20mm / 0.8";Shank Diameter : 7.9mm / 0.3" Total Length : 79mm / 3.1";Material : Metal, Carbide Color : Blue, Silver Tone;Weight : 42g Suitable for : Wood Cutting Package Content : 1 x Hinge Boring Bit