Review on HHIP 2007 0021: Advanced Interchangeable Counterbore Set for Precision Machining by Michael Glassburn

Same problems as others. The tool holder was rusty on the inside, the socket head of the lead screw was stripped and stuck in the tool holder body. And the tracks weren't deep enough to pinch the pilot. Luckily I have a lot of machines and equipment. I was able to drill out the stripped/stuck set screw and tapped the hole. I had to buy a new grub screw M4x0.7. I was able to use this cutter, but not without repairing it first. If it was something Harbor Freight was selling, it would probably be half the price. If Revain wants to sell cheap chick junk, they have to charge prices that match the quality.