10Pcs TitaniumHSS Router Carbide Engraving Bits & 5Pcs 3 mm Twist Drill Bit For Dremel cyclic Tools-1 / 8 '' -LRB- 3 mm -RRB- Shank With One SPTA Silicone Wristbands Material : High-Speed-Steel -LRB- HSS -RRB- Color : Silver as the picture showed Feature : A pack of Ten 1/8 '' -LRB- 3 mm -RRB- carbide engraving bits unique flute replacements for your CNC machinery, these durable bits are made from high-top quality carbide for a punctilious, easygoing cutting experience Non-stick knives, smokeless, nonflavoured, nonspeaking , mirror grinding process design extensive capacity chip groove, and spiral cutting edge tart, greatly enhance the efficiency and quality of products Package include : 1 Set of 10pcs of 1/8 '' Carbide Engraving Bits 5Pcs 3 mm Twist Drill Bit .