DO NOT BUY! I put the bit in the router, fully inserted in the collet, mounted the base and turned it on. It was immediately spoiled. My hand was still on the power switch when the bit flew off at full speed, piercing the bottom panel of my router. The splinters hit me in the stomach and in a protective mask I'm glad I'm wearing it. From what I understand the racquet was poorly balanced, probably because it was cheap, made in China and wobbled and broke immediately. Not only has this failed…