I have used Holbren before for helical cutters, and they seem to be a good company. I can't remember if I ordered my last set of jointer knives from Holbren or Global. Straight blade, three knife sets are pretty inexpensive. I just don't enjoy setting the knives anymore.
As far as quality, the knives I have from Delta, Grizzly, and Global all seem about the same. They are HSS, not carbide, so they don't last forever.
I bought a set of Titan planer knives for my 15" Delta planer from Holbren, and I thought they were better quality than the OEM. Way less expensive also. Great company to deal with as well. Bought quite a few router bits (Whiteside) and a couple of saw blades from them as well (Ridge Carbide). Fast shipping, great CS, and good products all around.
I just bought knives for my jointer from Holbren. They were at the house in 3 days. I haven't run much over them due to all the fiddling with the jointer to get it set back up but the felt sharp to the finger and were all the same height. Id purchase again.
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