New tools

Re fractional inches, any machinist or welder who memorizes these will end up saving a lot of time:

1F08C46C-A21E-4309-B4A2-5AD5AEEAC2D5.png

For sixteenths, a good memory trick is to just memorize .0625, .1875, .3125 and .4375; then just add .5000 to get the 5/16 (.5625), 7/16 (.6875), 9/16 (.8125) and 11/16 (.9375).

Carpenters love a tape measure and working to 1/16” or 1/32”.

For your 4” round bar, your local steel supply should offer a cutting service. It may be a hassle to take the one piece down there, but not so bad bringing four pieces home. My LSS would charge about $9 for each cut of 4” round stock.
 
Last edited:
Re fractional inches, any machinist or welder who memorizes these will end up saving a lot of time:

View attachment 350507

For sixteenths, a good memory trick is to just memorize .0625, .1875, .3125 and .4375; then just add .5000 to get the 5/16 (.5625), 7/16 (.6875), 9/16 (.8125) and 11/16 (.9375).

Carpenters love a tape measure and working to 1/16” or 1/32”.

For your 4” round bar, your local steel supply should offer a cutting service. It may be a hassle to take the one piece down there, but not so bad bringing four pieces home. My LSS would charge about $9 for each cut of 4” round stock.

This is a my point, with the metric system, you don't have to do this, convert base 16 counting system into a base 10 counting system. Although I really appreciate your chart, I'm a little confused by it, the decimal equivalents has mm...? 1/8 inch is 0.125 inches if it was mm it would be 3.175mm, why does it have mm in the column?

I don't remember asking about some 4" round stock, did I do that in a earlier post? Regardless I have wanted to get a 3-5 inch wide by 1-3 inch tall round stock to add mass to my Harbor freight mini mill spindle. Good idea or bad idea?

But if you could help me with this, do you know where I can get some info about 'P&W Precision Level', model no. 58-8, it looks alot like a Starrett 98-8 and how do you remove surface rust from a precision ground surface, I have a small grade B surface plate, and I have some 600 grit sandpaper now, I've got some 1000-5000 grit sandpaper coming on the 10th and a 2500 grit 6 inch bench grinder wheel. The reason I listed all that is, my thought is to lay a some high grit sandpaper on my surface plate to remove the rust and to use the grinder wheel to get into the angled parts. But I don't know if that is a good or bad idea, what do you think?

But mostly thanks for the reply
 
Back
Top