Toledo Pipe Magentic Center Pipe Hole Punch easily drill holes in 1 to 10 Pipe Hole SawThe Toledo Pipe center pipe hole punch lets you easily drill holes in 1" to 10" pipe. The rare earth magnets quickly affix to the pipe and allow precise position of the hole punch. When tying in to an already installed pipe the level vials allow for a quick look to see if you are perpendicular. Saves time and accuracy laying out crosses or multiple outlets on the same length pipe. Pipe Capacity: 1" to 10" Machined from aircraft grade 6061 aluminum. Replaceable leveling vials are protected by the housing and visible from 2 sides. Rare earth magnets maintain a strong contact on pipe. Using a Center Punch prevents the drill bit from walking on the curved surface. Saves time and accuracy laying out crosses or multiple outlets on the same length pipe.