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 recently purchased a bi-metal hole saw that worked like a charm! Through trial and error I found that the Bosch model I chose was the best fit for my needs .It cut through materials quickly and cleanly, leaving a perfectly sized hole every time. The only con was the cost, but the quality and longevity of the tool make it worth the investment. highly recommend for anyone in need of a reliable hole saw..
Based on our own experience, the hole saw was unable to cut through even the thinnest of materials. It took hours of frustrating and ineffective attempts to make even the slightest dent, leaving us feeling incredibly disappointed....
I bought this to cut a hole in the side of my camper van to make an electrical connection. It was deep enough to go through the wall plus half an inch of padding. My cordless screwdriver did it.