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Not exactly right. ISO is for a large part based entirely on DIN (1917). The International Standards Organization (ISO) standard has evolved to supersede the DIN standard, which was historically the predominant metric fastener system referred to. Since ISO came into being most national...

Looks like a somewhat mutilated 3/4-10

Just not enough info available from this print. For your own good: This unbelievable conversion (x25.4) will kill you. Stay with metric only. You are taken a simple part print and are making a monstrosity out of it almost impossible to to make this part. If you are making parts designed in...

STRAIGHT knurl on dia 8 shaft and maybe M4 screw in front. Press on knurl.

Looking at your post I am sure you are trying to use the IDO 286 System of tolerances. Unless you are for some reason tied to using 6m6 for a shaft tolerance I would recommend that as a first step you decide wich one of the two systems under ISO 286 you want to use. There are two systems...

M5 in 4mm should not give you a problem at all. C'sink lightly. If you have a extra heavy load - put a nut behind it.

They want you to apply IT6 tolerance to a part which determines how this part - hole or shaft - is manufactured. You are required to put the IT6 tol. in the right position. Depending on the part requirements. Could be a standard hole (preferred method) with a H6 tol. combined with a shaft tol...

Look here:Link

For manufacturing use 8H7 (+15) for the hole. H7 reamers are mostly standard and easily available. H7 is just a little finer fit than H8. You will not know the difference. For the OD use 8f7 (8 -13-28). This will give you a +13+43 play between parts for a "FINE" running fit. A H8 hole would...

ISO!! Only if for some reason ISO is not available for what you are looking for, than use DIN. Most ISO standards are the same or very close to DIN. What exactly do you need?

Tolerances for cutting tools can be found by using DIN. DIN 1420 for instance gives the manufacturing tolerances for reamers. There will most likely be a ISO number for DIN 1420. Once you know what kind of cutting tool you want to produce or buy than you can find all your info under the DIN for...

99.999% across flats 1/2" Hex You just don't specify a hes across points.

Converted from 3 7/8" to metric ISO tol..

Learn how to use "Tooling Balls". Google it.

One pin should be a diamond pin.

38.94 mm dim. has a tol. of +/-0.25mm as stated in the block. Nothing wrong here.

You will need to buy DIN5480.

We had to duplicate thousands of tools when we moved some production from Germany to the US. All prints were metric and at first we started to substitute inch size material but soon had to give it up. It looked like it would not be a problem using inch size material for base plates, blocks and...

Instead of going to M12 (from 1/2" = 12.7) can you go to M14? Seems to be your logical choice. Tap drill 12mm.

Just a 20 deg chamfer (or bevel) at the start of the 19H8 required mounting hole is recommended for ease of assembly. Just break the corner on the mounting hole and make sure there is no burr. Using the word "Phase" instead of "Fase" is a translating error. The word "Phase" can have many...