Progressor tooth design cuts faster and lasts longer in wood and metal applications. Reinforced shoulder for added strength and longer life. 8 percent cobalt alloy for longer life and higher heat resistance. Works with standard or Quick Change mandrels (Quick Change requires adapters).
I used this hole saw to drill a foot vise hole in a workbench. The teeth cut well, but need frequent cleaning. I don't blame the saw, I blame the tree. Only the nature of the animal. The fit was good, the hole is fairly clean in fir. A nice feature from Bosch is the quick fixation of the mandrel and the quick release of the connector. I would buy again.
Pros
Reinforced shoulder for extra strength and durability