Customizable Hole Saw Case;Most Durable Hole Saw. Period;New 3.5 TPI Tooth Design;All Access Slots enhance user productivity by providing best access and leverage to remove material slugs;Thermoset Coating reduces friction and drag, increasing overall speed and cordless efficiencies;Interchangeable Pegs Allow for Customizable Kit Configurations;Reinforced Grids on Top and Bottom Keep Hole Saws Securely Stored;Removable Accessory Box Offers Additional Customization Options;Designed to Fit Perfectly into Packout Organizers;Made in USA;Plug Jack, an all access slot design for fast plug removal;Rip Guard, the strongest tooth form in the industry