Insert-Pro ドア製作レール&スタイルセット用 ベベル&ラジアス交換ナイフ

These C4 sub-micron knives cut through hard maple like butter, and the fit on my Infinity shaper head was spot-on with zero adjustment. I'm really impressed with the clean finish they left on the door stiles, no sanding needed.

The cut quality on these replacement knives is noticeably cleaner than the stock blades I was using, especially on the door panel profiles. They fit the shaper head perfectly without any wobble, and it's nice knowing the C4 sub-micron carbide will hold an edge for a long time. Exactly what I needed

The C4 sub-micron carbide holds an edge noticeably longer than the cheaper sets I’ve burned through, though the fit on my hub needed a tiny bit of shimming. Cuts clean on the oak door rails I’ve run so far, so for the price it’s a solid step up.