HIGH QUALITY, DURABLE Diamond Coated Holesaw Tool 1 inch Diameter
STANDARD 3/8 inch Shank Use with and standard electric or battery drill.
PROFESSIONAL Quality Tool for Drilling Holes in Tiles, Glass, Fish Tanks, Marble, Granite Countertop, Ceramic, Porcelain
SAVE OVER 80 Percent for DIY Kitchen, Bathroom, Shower, Faucet Installation Projects
Use water as coolant to prolong the tool life, these tools do not need a center pilot drill.