I have a M/C primary cover , ally 5mm thick . I want to cut a hole in it 160mm dia .
I have a boring head [ never used it ] with an 18mm arm that takes a 6mm HSS cutter .
I am thinking to cut the hole either with the boring head and an appropriate shaped cutter, plunging down, or an end mill freehand & Finnish with the boring head .
I have a medium size knee mill . I am very inexperienced .
Can anyone foresee any problem I may encounter or offer any advice .
I have a boring head [ never used it ] with an 18mm arm that takes a 6mm HSS cutter .
I am thinking to cut the hole either with the boring head and an appropriate shaped cutter, plunging down, or an end mill freehand & Finnish with the boring head .
I have a medium size knee mill . I am very inexperienced .
Can anyone foresee any problem I may encounter or offer any advice .