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$)
3 A# J8 S- S; I

http://forums.redflagdeals.com/h ... ually-90-a-1115668/
) X; C+ C1 J" W* d/ F$ g4 a
2 y+ k* z: v. n* w红旗网上还挺hot的，好像只能打磨吧，还有什么功能？谢谢！