uxcell PCB Drill Bits 0.3mm-1.2mm Tungsten Carbide Rotary Tool Jewelry CNC Engraving Print Circuit Board Micro Drill Bits 1/8 Inch Shank 1 Set (10 Pcs)

You can drill a hole in most any carb with these.

This review is for the uxcell tungsten carbide PCB Drill Bits in sizes 0.3mm-1.2mm in 0.1mm steps. I have found the drillbits to be highly effective in drilling holes for reworking PCBs. I have not had any issues with breakage, although I do use a small Dremel drill stand which is a must when using any small drillbits of this type no matter what brand. I have used the 0.3 mm drillbit multiple times without breakage it is important to secure your work and to go slow and to occasionally clear the hole then continue drilling. I also use these to drill through the vias in the PCBs if I need to disconnect the groundplane of a small area from ground. As a reminder drill bits of this size will not tolerate a lateral load on the drill bit that’s why it’s important to use a drill stand with the bits. I’m sure if you do you will get a long life out of these bits just as I have.

Best tool to use for carb cleaning.

Working with my dremal! Sturdy haven’t broke any at all. My dremal is strong, it is a plug in not battery operated.

I use them for drilling/milling small holes or object modelling projects. They work well, but as is the case with small bits, be careful or you will break them. Decent quality, on time delivery and overall pleased with purchase

For me, the bits were too short and too ridged.... they broke off way to easily. had to buy new carb anyway because the bit broke off in the main jet.

Not sure of quality. 2 sets arrived broken

These things shatter just sitting in their case. Poorly made carbide.