This is a 1/8 inch drill bit. We use this for drilling a hole that will take a #4 machine screw. The majority of our kits and circuit boards use a #4 machine screw so this drill bit size is a must for putting together a robot kit.
The Spektrum AR620 air receiver is a full-range, 6-channel sport receiver with DSMX/DSM2 compatibility and a compact footprint that’s streamlined to fit in a wide range of models. Great for Robots too!