10 pcs 1.1mm Diameter Tungsten Carbide Macro Drill Bits, 1/8" Shank For PCB, Dremel, Jewelry, CNC, Soft Metals 10 pcs Set Of 1.1mm Tungsten Carbide Macro Drill Bits, 1/8" Shank For Printed Circuit Boards, Plastics, Carbon Fiber, Fiberglass, Wood, Soft Metals, Stainless Steel 10 pcs Set in a Protective PVC Case Cutting edge diameter: 1.1mm; Cutting Length: 10.5mm High cutting performance, high wear resistance