Milwaukee Tool - Milwaukee 49-22-4171 21PC Bi-Metal Hole

New 3.5TPI Tooth Design Features: Most Durable Hole Saw. Period.; New 3.5 TPI Tooth Design; Customizable Hole Saw Case; 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; Made in USA; Features teeth with more steel behind the cutting edge for enhanced durability; Backed by RIP GUARD™ limited lifetime tooth break warranty; Equipped with plug jack, an all-access slot design for fast plug removal; Features bi-metal construction with 8% cobalt for increased wear resistance