"Spyder's design is superior for use in wood. The design allows the wood to not fill in the cutters so it removes wood and therefore drills through wood much faster than normal fine tooth hole saws. I manufacture Wood Wall above ground pools and had a special cutter made 35 years age that is similar in design to the Spyder to drill a 3" through hole and a 4" counter bore hole all at once for where our water inlet or light fitting is installed. The Spyder technology when drilling wood is the only way to go! Great design, Great product."

"Awesome tool! Remodeling a home where the old sheet rock had been glued to the outer wall studs. Scraper makes quick work of taking the glue and bits of sheetrock to prep for the new."

"25+ years exp. HVAC contractor. Best hole saws ever. They will actually cut concrete, but not recommended at all. They will cut brick/cinder blocks pretty well. Where they shine is cutting concrete siding and shingles. Cuts wood like a knife thru jello."

"When I first bought SPYDER products I had high hopes and man did it exceed my high hopes. The quality and the craftsmanship put into these products are absolutely amazing! I highly recommend SPYDER to friends, family, colleagues."