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I ordered and received a set of 1, 2, 3 blocks. I assume all the holes are to lessen their weight. But, what are the threaded holes for?
Another question: Why are they sold in sets of two? I suppose that, were I a machinist, I would know both answers. I'll bet one of you guys know.

Gene Howe wrote:I ordered and received a set of 1, 2, 3 blocks. I assume all the holes are to lessen their weight. But, what are the threaded holes for?
Another question: Why are they sold in sets of two? I suppose that, were I a machinist, I would know both answers. I'll bet one of you guys know.

1. Bolts...
2. Reproduction...




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Gene Howe wrote:I ordered and received a set of 1, 2, 3 blocks. I assume all the holes are to lessen their weight. But, what are the threaded holes for?
Another question: Why are they sold in sets of two? I suppose that, were I a machinist, I would know both answers. I'll bet one of you guys know.

On the original version of the 123 blocks, it was to bolt them together. The inexpensive ones available today, the non-threaded holes are too small to allow that. They can be used for additional hold downs.

They also can be used to check anything is at 90 degrees. Set a distance of 1", 2", 3" or a multiple. You can also get 2-4-6 blocks.

Two allows one to prop up both ends of a work piece to an equal height.

The threaded holes allows one to secure them to a way(or whatever suits).

I knew you guys would know.
Thanks for the info.

Gene Howe wrote:I knew you guys would know.
Thanks for the info.

It is good that your questions are answered, Gene. But what is a way?

I know the way home. I know way tubes. I know the door way. But I don't know what a way is.

dusty wrote:It is good that your questions are answered, Gene. But what is a way?

I know the way home. I know way tubes. I know the door way. But I don't know what a way is.

A 'way' is more appropriate to a lathe - the tail stock and 'carriage' slide on the ways. Hence the reference of the ss tubes as way tubes.

My original mention of 'ways' was meant to apply to a milling machine. The 'table' has slots(yes 't slots') used for mounting jigs and workpieces and are sometimes referred to as way slots. Not being a 'machinist', I may have used the term incorrectly. After all my machine shop 'training' was over a half century ago!;)

dusty wrote:It is good that your questions are answered, Gene. But what is a way?

I know the way home. I know way tubes. I know the door way. But I don't know what a way is.

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robinson46176 wrote:[ATTACH]18966[/ATTACH]


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Thank You (again)!

dusty wrote:It is good that your questions are answered, Gene. But what is a way?

I know the way home. I know way tubes. I know the door way. But I don't know what a way is.

And that reminds me of a question I've had since taking up sailing-- You hear people yelling "anchors a way", but I've never heard WHAT. And as long as the way is properly anchored who cares what anchors it, any way?