I bought these to use on a Grizzly G4000 lathe. Shipment arrived in a timely manner in good condition. No complaints on quality, and they perform great! My only issue was the 1/2 size is 1/32 too tall for the turret tool post, and it wont line up with the spindle centerline. Does fine except for facing off stock. I reordered these in the 3/8 size and shim them to the c/l and all is well! As always, both where of the quality weve come to expect from Grizzly! More orders to come........!