ファクトリーセカンド – 形状不良の可能性あり – 1/2インチ圧縮チップブレーカー（1/2インチシャンク）540-CM500CB-3FL

I was a little nervous buying a factory second, but the 1/2" shank seats solidly in my router collet with zero runout. For the price, this compression chipbreaker cuts cleanly through plywood—the geometry blemish is completely invisible during use.

The cut quality on this 1/2" compression bit is impressively clean for a factory second—I can't spot any geometry issue at all. It's saved me a good chunk of money without sacrificing performance.

Bought this as a factory second and honestly can’t spot any geometry issue—the cut on melamine was clean and chip-free. The 1/2″ shank fit snug in my router, and it’s performed just like a first-quality bit for half the price.