Key, 6x18 mm

This 6x18 mm replacement fits my mini mill perfectly, no filing or adjustments needed. Solid machining, and the flat edges seat securely in the collet every time.

Slipped right into my mini mill's shaft with zero filing needed—the 6x18 mm dimensions were spot-on. I was worried about finding the right replacement, but this key fits perfectly and feels sturdy enough for daily use.

My mini mill’s old key was stripped, but this 6x18 mm replacement slid right into the slot and hasn’t budged since. The machined edges feel precise and solid—no wobble at all when I run the spindle. Exactly what I needed for a quick fix.