0.6mmx4mm Corn Teeth TiN Coated Engraving Cutter PCB Drill Bits 5pcs Product Name : PCB Drill Router Bits;Features : Straight Shank Material : Solid Carbide (Tungsten Steel);Cutting Diameter : 0.6mm / 0.024" Shank Diameter : 3.175mm / 1/8";Flute Length : 4mm / 0.16" Total Length : 38mm/1.5";Main Color : Gold Tone, Silver Tone Weight : 37g;Package Content : 5 x PCBDrill Router Bits1 x Plastic Case