These collet chicks are well made and exceeded my expectations. They look identical to some I bought from Santa Cruz electronics. They do not have an ATC groove like the tormachs. A quick check of the runout showed no difference from tormach originals. Very pleased. Bought er20s also.
Verified purchase: Yes | Condition: New
All of the ten chucks run with good concentricity in my machine - much better than expected. The chucks are not exactly as shown in sellers information, but are better in that they are machined with a groove for use in a machine with ATC ( automatic tool changer) I have been using these chucks for several weeks, and am really pleased with the quality and accuracy.
Verified purchase: Yes | Condition: New
The collets were of higher quality than I was expecting. Tested 3 of the 10 I bought and I am very pleased with the low runout.
Verified purchase: Yes | Condition: New
Works well for the work I do, help the ridged stance of a small mill, would well recommend for the small shop. RJ
Verified purchase: Yes | Condition: New