Carbide Micro Drills Bit

一1234一 Carbide Micro Drills Bit Brand Name:SUNRAISE Type: Micro Twist Drill Bit Use for:Metalworking Material:Cobalt Steel Alloys Without Coating Micro Carbide Twist DrillsMade by ANCA grinding machine Material: carbide tungsten from Taiwan,Germany and USA. Could processing Normal steel,iron cast,stainless steel,and other matels size:D1mm to D4mm for customer choice Good quality longer using life,many times life longer than HSS drill. We also have size not integer number.