Solid Board Access Hole Cutters?

[wildgoose]

After hitting a nail and also an RSJ immediately below some floorboards, my silverline cutter is now scrap. I noticed that Armeg do a similar 111mm cutter and wondered if these perform any better in normal use - not expecting anything to withstand hitting solid steel without damage of course!

The Armeg cutter looks good but at twice the price of the silverline does it justify the extra cost I wonder?

 

[chrisg1979]

I also have a silverline one, can't see what the difference would be to make the armeg double the price!