Acrux 7 3pcs Long Spring Calliper Set, 20cm Outside Calliper, Carbon Steel Callipers Measuring Tool for Wood Turning Lathe Projects

Good quality and price

They are small enough to work with small pieces and they are well made

Why did you pick this product vs others?: Good value for the money. Functionality: These are pretty well made, I did not experience the same issues as others that have reported with excessive play in the tightening mechanism. Accuracy: I took 1 star off simply because the inside calipers have a slight ripple defect, perhaps when these were ground to shape/heated and are not entirely even. Not a big deal for me, a simple adjustment in the vice is all it took to even the caliper out. The other 2 calipers were good with no issues.

I bought this set to help match my intake runners while porting my cylinder heads and intake manifold. They worked out perfectly and always had a calipers that worked to accomplish all my needed port size comparisons. They seem sturdy and held up to my use thus far.

Perfect. Ease of use.