uxcell 14mm Bore Diamond Tipped Glass Hole Saw Drilling Tool 5 Pcs Product Name : Glass Hole Saw;Main Material : Metal,Diamond Particles Cutting Hole Diameter : 14mm / 0.55";Shank Size (Approx.) : 14 x 6.5mm / 0.6" x 0.26" (L*D) Total Length : 42mm / 1.7";Color : Silver Tone Weight : 54g Package Content : 5 x Glass Hole Saw