???? ??????? ??????? ?? ??? ??????? ?? ????? ????? ??? ??? 800-900 ...

????? ???? ????? ? ?????? ?????????? (??????? ????? ???? ???????? ???????) ??? ???? ???? ?? ...

?? ??? ?????? ???????? ? ???? ??? ????? ???? ???? ?????. ????? ??? ?? ???? ???? ...

Maybe you’ve heard people?should never ever drill a hole with an end mill if there...

??? ????? ????? ????????? ???? ??? ????? ????????? ??????? ??????? ????? ...