I'm using these bits to easy build small projects out of aluminium on a way I can always unscrew (parts of) them. U can't easy solder / weld aluminium and using nuts on the bolts is not always doable. What can I say more? They do the job as promised.

I'm using these bits to easy build small projects out of aluminium on a way I can always unscrew (parts of) them. U can't easy solder / weld aluminium and using nuts on the bolts is not always doable. What can I say more? They do the job as promised.

I'm using these bits to easy build small projects out of aluminium on a way I can always unscrew (parts of) them. U can't easy solder / weld aluminium and using nuts on the bolts is not always doable. What can I say more? They do the job as promised.

J'ai utilisé le petit diamètre et il s'est cassé immédiatement. Il faut percer très lentement. I used the small diameter and it broke immediately. It is necessary to drill very slowly.

J'ai utilisé le petit diamètre et il s'est cassé immédiatement. Il faut percer très lentement. I used the small diameter and it broke immediately. It is necessary to drill very slowly.

J'ai utilisé le petit diamètre et il s'est cassé immédiatement. Il faut percer très lentement. I used the small diameter and it broke immediately. It is necessary to drill very slowly.