The kits are all designed to provide you with the right sizes of hole cutters that are needed to accomplish specific tasks. Tasks such as fabrication, rustproofing, installing antennas, removing spotwelds, and making access holes for a variety of aftermarket add ons. Includes: 7/8, 1, 1-1/8, 1-1/4, 1-3/8, and 1-1/2 inch cutters, arbor (11007), hex washer, center punch and extra pilots. Blair holemaking tools are packaged in handy kits making them easy to find in your toolbox. These kits will extend the life of Blair tools because they protect the sharp edges from being damaged by other items in toolbox. Because Blair hole cutters are sharp, the kits help protect fingers, too. Warning: This product contains chemicals known to the state of California to cause cancer and birth defects or other reproductive harm.