Uxcell Carpentry Forstner Tip Hinge 42mm Diameter Boring Bit Drilling Tool Product Name : Hinge Boring BIt; Suitable for : Wood Cutting Drilling Diameter : 42mm / 1. 65"; Shank Size(Small) : 23 x 9. 5mm/0. 9" x 0. 37"(LD) Shank Size(Big) : 35 x 12mm/1. 4" x 0. 47"(LD); Total Length : 80mm /3. 1" Material : Metal, Carbide; Color : Gray, Blue Weight : 104g; Package Content : 1 x Hinge Boring Bit