I am using Manchester cutoff tools. I can get inserts in zero, 5 and
12 degree. 5 degree seems to work best for most things, zero for when I am grooving. When would 12 degree be used? Is it dependant on material?
Any rule of thumb to apply here.
Remove 333 to reply. Randy
Didn't find your answer? Ask the community — no account required.
R
Randy333
Anyone got anything to add here to this off topic non-politics post?
Remove 333 to reply. Randy
J
James Waldby
I am not well-informed about when/where to use 12-degree inserts, but would expect an angle like that for cutting aluminum or plastics, and a still-higher angle for cutting wood. Also, some 12 degree inserts are for parting or roughing mild steel if I understand correctly.
D
DoN. Nichols
[ ... ]
Well ... I don't use inserts very often for parting, but I would suggest that the 12 degree might work well with aluminum, and maybe some plastics up close to where they are held.
And you probably should prefer the 0 degree for parting brass as well -- it tends to self-feed with rake. Same with "dubbing" (removing the rake for a short distance at the end of the drill bit) twist drills to prevent diving through when the hole breaks through.
Mostly -- try and see what work for you, your materials, and your machines.
Good Luck, DoN.
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required
Report Content
You are reporting this content to the moderators. They will look at it
ASAP.