10 Pcs Tungsten Steel Carbide Endmills CNC Rotary Burrs
ER16/ER20/ER25/ER32 Spring Collet Set For CNC Milling Lathe Engraving Machine. 10pcs 1/8quot; Tungsten Carbide Milling Cutter Rotary Tool Burr Bits To Dremel Tools. This engraving bit is a carbide rods and tungsten steel rods