The impact drill uses a wall drill bit, the quality is very good!
Specification: 12mmx350m optional
Generally, 12mm can pass 2 network cables
The tail is triangular and can only be used for impact drills, not electric hammers. Don’t make a mistake.
The quality of the impact drill cannot be too bad. After all, it takes hard work to get over the wall.
Drilled holes can pass through network cables
