1 Matched Pair Ultra Precision 1-2-3 Blocks 23 Holes 0.0002" Machinist 123 Jig Fit for Milling Machine

Getting spare 123 blocks has always been a good idea, no one will ever complain. Based on measurements of these spots Therefore, it seems to be working. In saying so, they are NOT made of Thus, I should highly advise against using them for anything structural, such as stacking parts on top of them or holding them in a vise. In order to achieve that, hardened blocks are needed, and imported ones could not meet that requirement. The measuring blocks are perfect if all you need is a block for measuring.

Daniella Hanna

| Nov 12, 2020

I use these for all sorts of woodworking things and they're much easier to use than a tape measure or marking tool. Paper towels did a good job of wiping it off.

Florence Calderon

| Mar 18, 2021

As a woodworker, I use one for setting up machines, and when I reload bullets, the other for checking gage readings.

Avayah Serrano

| Jun 10, 2021

It was exactly what I needed. The finish is excellent, and the dimensions are great.

Blaise METCALFE

| Feb 14, 2021

You can see that they're That's exactly what they say!.

Keith READ

| Sep 20, 2020

The model is accurate in three dimensions.

Stefan Holt

| May 16, 2021

Calibration is really easy with this application. I appreciate the speedy arrival!.

Thea Castillo

| Sep 04, 2020