What tooling is this?

[John TV]

My son-in-law found these at his place of business and thought they were part of a metal lathe which he knows I have. I am still new to this hobby/ obsession and I do not yet own a mill, but from YouTube these look like R8 tooling for a mill. You will see from the pictures one is some kind of arbor to hold cutters or saws and the other appears to be a carbide tipped. ???
That's my question is this a face cutter or maybe a annular hole cutter? Hoping you all might help me figure it out. Also,in the relatively near future I am hoping to acquire a 2 hp pm30 bench top mill. Will that mill be able to use the carbide cutter? Thanks for your thoughts.


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[benmychree]

These are obviously mill tooling, the one with the tool bits is a face mill, the other can hold any arbor style cutter, such as the radius cutter shown or a slitting saw or any other type of arbor mounted cutter; nothing to do with lathe work.

 

[John TV]

These are obviously mill tooling, the one with the tool bits is a face mill, the other can hold any arbor style cutter, such as the radius cutter shown or a slitting saw or any other type of arbor mounted cutter; nothing to do with lathe work.

Thanks. I was not very clear in that I realized right away that it was for a mill. That said, I have never seen in person an r8 tool of any kind. On the face cutter, the thing that throws me a bit is the angle ground on the outside of the bit, not the cutting carbide but the steel behind it. What is that angle there for, its purpose?


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[Hawkeye]

If you take the second arbor apart, you'll be able to measure the diameter of the mounting shaft. (Possibly 1") The cutters for that arbor are actually made for a horizontal mill. These can be very useful for an R8 mill.

 

[benmychree]

Thanks. I was not very clear in that I realized right away that it was for a mill. That said, I have never seen in person an r8 tool of any kind. On the face cutter, the thing that throws me a bit is the angle ground on the outside of the bit, not the cutting carbide but the steel behind it. What is that angle there for, its purpose?


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It is the common angle of a lathe tool bit that gives some radial pressure on the tool so that it does not tend to draw into the cut and cut undersize; this is not so important with milli9ng as with lathe work, the tool bits could as easily be straight as with the lead angle.

 

[T Bredehoft]

I have one of those four-tool face cutters, came with a box lot of tooling. I put four HSS 3/8 tools in it, it does a good job of facemilling when used to skin a small cut from the surface.