Drill Bits - Spiral Double Flute: 1.3 ~ 2.2mm Kit
1 kit comes with 10 different bit diameters
This kit consists of well selected high precision drill bits for electronic projects when users need to drill holes on PC boards. The bits are made of tungsten carbide which is stronger than regular high speed steel. The shank diameter is 3.175mm and the overall length is 38mm.
For example: 2.54mm pin header is very commonly used in electronic modules. Its pin diameter is 0.6mm, so the user needs to use a 0.6mm drill bit. Many PC boards use 3.0 or 4.0mm mounting holes, so the user needs to use 3.0 or 4.0mm drill bits.
Material: Bit is tungsten carbide / Shank is high speed steel
Packing box: translucent plastic
PCB, FPC, SMT, CNC, die, metal precision parts processing.
TD= tip diameter / FL = flute length / SHK.D = shank diameter / OVL = overall length(tolerance: +/-0.1mm)