Treedix 10pcs PCB Drill Bits Set Tungsten steel Compatible with Print Circuit Board Stone Dremel Jewelry CNC Engraving

1、Perfect tool for small beads and glass. 2、Fit in a standard chuck. Note:Make sure to use with a drill press Drilling by hand isn t advised. Specifications: Material: Tungsten Steel + HSS Handle Diameter: 3.175mm Quantity: 10pcs Package Includes: 10 * Drill Bits