Small ratchet tool for knife tinkering - Please advise

[ricecakes]

Hi
I have an ONTARIO RAT 1 and i would like to tinker with it - and subsequent knives I buy.

Can someone please recommend a small pen style or similar ratchet tool that comes with the relevant hex head fitting etc.

I live in Cambodia so I have to online everything so any links to ebay shops or similar i'd be very grateful.....

thanks
rc

 

[MIKE MACINTOSH]

Chapman tool with driver bits is the best I've used. Highly recomend it.

 

[ricecakes]

Thanks Mike