The plastic chuck not only does not tighten enough, but it also damages your hand due to friction in order to tighten it until it dies to hold the drill bits.
The consumables were the most useless I had ever used.
From an anonymous Chinese brand, I would expect them to break during use, but from Makita, in the first uses... unacceptable.

I changed it with another one as the chuck did not hold the drill well. The new drill I bought, from a different company, is clearly of better quality with a metal chuck instead of plastic.

I bought it about three years ago! The chuck is plastic, cheaply made, and does not grip the drill well at all! It takes me forever to finish the job! The accessories from the case seemed useful to me!