abrasive cutting tool

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Lew Hartswick
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abrasive cutting tool

Post by Lew Hartswick » Sun May 11, 2008 5:20 pm

Here is a cutter I made a little while ago to remove the bulk of material
before surface grinding lathe bits. The one shown is to be a 60deg point
for threading. Point offset to the left for threading to a shoulder.
Motor is a series wound 3/4 HP from a bil that worked at ETS, the vertical
dovetail adjustable mech is from some optical device being discarded by
the university about 12 yrs ago. Abrasive discs from Harbor Freight. :-)
Works fine but is a little slow, on the other hand requires a lot less
surface grinder time to get final shape than hand hoging on a bench grinder.



Jose Rivera
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Post by Jose Rivera » Sun May 11, 2008 6:42 pm

I need one of those :lol:
There are no problems, only solutions.
Retired journeyman machinist and 3D CAD mechanical designer - hobbyist - grandpa

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Post by GlennW » Sun May 11, 2008 7:18 pm

I've used a 6" abrasive wheel on the surface grinder. Add the compound MagnaSine for compound angles and there's not a whole lot of rough grinding left to do. Just got a piece of 5/8 Cleveland HSS to make something out of.


Last edited by GlennW on Mon May 12, 2008 10:19 pm, edited 1 time in total.

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Post by mechanicalmagic » Sun May 11, 2008 8:37 pm

I am totally envious.

Not of the cutoff gadget you built, but having the space to store it. :lol:

If I had the room, I would have dozens of those things, love building them, can't store them.

I have a HF cutoff tool, a die grinder type with those wheels. It's mounted on a base, now looks like a mini Skil saw. Works fine on steel sheet metal, and when put upside down in a vise, it looks like a mini table saw. Love it for gross removal, or cutting a blank in half.

Every day I ask myself, "What's the most fun thing to do today."
9x48 BP clone, 12x36 lathe, TIG, MIG, Gas, 3 in 1 sheetmetal.

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Lew Hartswick
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Location: Albuquerque NM

Post by Lew Hartswick » Mon May 12, 2008 5:38 pm

mechanicalmagic wrote: If I had the room, I would have dozens of those things, love building them, can't store them.

That is the real fun in metalworking, building the tools. If I had to store stuff
like this at home I wouldn't have room either. The highschool metal shop
is where all the "accesories" I build are at. Ofcourse that is where the
machines are also. :-) No room at home in the garage. I wonder what I'll
do next year, the teacher is retiring. I may have to depend on doing my
metalworking vicariously here on the net. :-(

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Post by BobWarfield » Mon May 12, 2008 6:13 pm

Very cool gadget Lew!

I have a carbide chop saw and a horizontal bandsaw, but no abrasive chop. I wind up using my little air die grinder and a cutoff wheel quite often, but something set up to be a little more precise would be really handy, especially for hardened steels.



J Harp
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Post by J Harp » Mon May 12, 2008 10:00 pm

Thats a great idea. Now if you could make the clamp so it would tilt a few degrees each way to take care of the side clearances it would save even more time on the surface grinder.


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