uxcell 1.6mmx8.5mm Titanium Nitride Coated PCB CNC Drill Bits Router 5pcs Product Name : PCB Drill Router Bits;Features : Straight Shank Material : Solid Carbide (Tungsten Steel);Cutting Diameter : 1.6mm / 0.063" Shank Diameter : 3.175mm / 1/8";Flute Length : 8.5mm/ 0.33" Total Length : 38mm/1.5";Main Color : Gold Tone, Silver Tone Weight : 37g;Package Content : 5 xPCB Drill Router Bits1 x Plastic Case