Our planer blades can be used on many machines and cutter heads, like centrolock cutter heads and the Dewalt planer machines, which using the Planer Blades and a wide range of other planer blocks from 4 sided moulders to surface thicknessers. These planer blades can meet its original cutting ability. Besides, these blades can be fabricated with machined locator holes for no-hassle alighment in your power tool. Also, the vacuum heat treating produces longer life, so you can get maximum use before flipping over to the other side. Our 2-pack includes 6 knives, so you have another set when one set of knives get blunt. Sharp and quick, easy and convenient installation, if you are interested in our products, just contact us online or send an email.