请教这个东西有必要买吗？Costco - DREMEL 300 series kit with 24 pieces

bigbowl

Costco - DREMEL 300 series kit with 24 pieces :: 34.99$ (usually ~90$)
5 |" O4 N2 T" W$ S7 _, F8 m

http://forums.redflagdeals.com/h ... ually-90-a-1115668/
6 C, u7 f" C+ p" S* `8 B4 G% i0 k
8 q& ^% m8 A' L: U: W  B红旗网上还挺hot的，好像只能打磨吧，还有什么功能？谢谢！