uxcell Punching Machine 4.5mm Hole Straight Shank Hollow Paper Drill Bit 76mm Product Name : Hollow PaperDrill Bit;Features : Straight Shank;Material : Metal Color : Silver Tone, Dark Gray;Punching Diameter(A) : 4.5mm/ 0.16";Punching Length(B) : 37mm/1.4" Shank Diameter(D) : 11mm/ 0.43";Total Length(C) : Total Length(C) 76mm/ 2.8" : 76mm/ 2.8";Net Weight : 25g Package Content : Package Content;1x Hollow PaperDrill Bit : 1x Hollow PaperDrill Bit