Hello and welcome to Enots engineering today we'll be looking at this
Parting off tool I purchased off eBay it's got sixteen mill square shank and
the two millimeter inserts on the end.
I had a few problems with this so let's go to the workshop and see what happened.
Now I've been shopping on eBay and I've
bought this parting off tool which comes with ten inserts it's a 16 millimeter
square shank this inserts 2 mil wide and just holds in you clamped with
the Allen screw on the top the only down side compared to the parting off tool
I've been using to same width is that you're limited to the depth of cut were as
on this tool l can move it out set the tool from the tool holder and
somebody asked me why I didn't have grub screws on here It did originally
have grub screws on this I've changed it to cap it's for two reasons one being
a bit taller you don't get swarf in the end as much and the other thing you'll
see that on a grub screw the allen keys all is a lot smaller than on a cap head.
So i've got a bigger allen key and a bit more leverage on it than I could get on a grub
screw so I'll set this tool to centre height and we'll see how it cuts so the
first problem I have with this tool is that I can't go low enough I can't set
it low enough because in my tool post this part of the tool holder is touching on top of the cross slide
it won't go any lower than that and I need to get you down another twenty thou
so the first thing I've done is put the tool in on its side so I can machine
some off the bottom because you can't go any further in than that with the tool
only need to machine up to the corner there's no point in machining all these
off in fact if I leave that on it will strengthen the end and give a bit more
strength than taking a millimeter off there so this next job tighten this up
the next job is to get the tool to level along the bottom to the chuck I've
mounted the dial indicator on the piece of silver steel that you usually use to
holding me tool holder and I'm checking work so I've gripped it on there clamped
it so now can turn it to get the height move it in there to the part you just
wind it across to get the parallel okay this door indicator is each
division is 0.0001" so it's zero there wind it along
just under zero this end so the face of that doesn't look very flat 0.0005 I'm only going to machine to there
that'll do so next thing to do is
put a milling cutter in the chuck The biggest milling I have is this
one as you can see there I'd need to do two passes so what I've done is put this
fly cutter in which will do it in one pass I've not used it before for milling
so we will see how we go
Bring the tool in
lock the carriage
The finish is quite good
feels flat it looks worse than it is
I'll just finally sharp edges off and we'll see if I can get sent to height on
that using the height setting gauge you can see it's just gone off zero top of the
tool set its center line and I've got probably a millimeter clearance under
the tool
well that's it from me I hope you've enjoyed it. I think I'll go and check
those bearings