From Amazon $12.75 CDN
1/4 inch drive.
I got an imperial and metric one of these back in October. ~$19.00
http://www.leevalley.com/en/wood/page.aspx?p=59940&cat=1,70373,70376
The new one from Amazon has a bit smaller profile.
My wife got one of these: 
https://www.amazon.ca/gp/product/B07CBQYYDD/ref=ppx_yo_dt_b_asin_title_o02__o00_s00?ie=UTF8&psc=1
Has 2.5mm and 3mm up to 5.5mm sockets.
