Toolless meaning
Filters. Not having or requiring tools. adjective.
What do mean by toolless machining?
the cutting or machining part of a lathe, planer, drill, or similar machine. 4.
What does it mean when its invertible?
Filters. (mathematics, especially of a function or matrix) Able to be inverted, having an inverse. adjective. 4. Capable of being inverted or turned.