after seeing everyone using a dremel/rotary tool to modify their rubies vader helmet to cut out the linings near the eyes. I bought myself one.
I want to cut out the 2 parts in red, they are pretty thin. around 2-3mm thick
pic borrowed from Darth Domain's
But when I use the tool with the cutting disc(i circled it on the manual and picture below) the whole disc breaks.
The manual doesn't say how to use this, it just illustrate how to turn it on and change accessories
am i doing something wrong here? am i using the wrong accessory?
please someone help