Review on Z 400 008 CR Threaded Stainless Internal by Bradley Stewart

Absolute bullshit, don't buy these! Instead of using a hex head (like every other threaded insert on the planet), the screwdriver uses a flat head or a special head installation tool, which I bought for another $10, but still, even with a really big hole drilled in the Wood is drilled, not inserted straight. That's a terrible design. If I could rate it a zero I would.