Hasegawa trytool modelling chisel 4

Hello guys, I just bought this tool today, I got it for roughly 20 US dollars...I was looking for this tool way back in HK last year ( 2008 ), but to no avail. I figured I could do fatter indentations along panel lines with this tool. I have yet to use it of course, but will definitely try it on my next project.

I think the pink thin block is for sharpening the tip when it gets blunt already.