A 112MM drill bit is enough for a 11mm pipe, just a little bigger, and a 51MM drill is needed for a 5MM pipe.
the PVC pipe with nominal diameter equivalent to DN2 is De25, that is, the outer diameter of PVC pipe is 25mm, so M25 drill can be used.
PVC material is relatively soft. If the drill grinds too fast and goes down too fast when cutting, it is easy to deviate. It is suggested to drill pilot holes with a small drill of about 4mm first, and then grind it into a chamfering drill with a 12-bit drill, and the cutting edge should not be too sharp. If it goes down, it will look good.
Extended information:
What are the advantages of p>pvc drainage pipes:
1. The surface hardness and tensile strength of pipes are excellent, and the safety factor of pipes is high.
2. It has good aging resistance, and its normal service life can reach more than 5 years.
3. The pipeline has excellent corrosion resistance to inorganic acid, alkali and salt, and is suitable for industrial sewage discharge and transportation.
4. The friction coefficient of the pipeline is small, the water flow is smooth, it is not easy to block, and the maintenance workload is small.
5. The material has high oxygen index and is self-extinguishing.
6. The linear expansion coefficient of the pipeline is small, which is .7mm/m.. C, the deformation affected by temperature is small. The thermal conductivity and elastic modulus are small, and the freezing resistance is excellent compared with cast iron drainage pipes.
7, pipes and fittings can be connected by bonding, and the construction method is simple.
Baidu encyclopedia-PVC pipe