Use Ryobi's line of titanium drill bits to drill holes through a variety of materials with ease. There are 21 pieces in this kit, the A972101. They range from 1/16” to 1/2", so you'll be able to tackle a variety of jobs. There are even backups of the more common bit sizes included, so you won't need to go out and purchase a replacement. They're titanium coated, which gives them greater longevity than also black oxide or bare steel bits. This works by reducing friction between the drill bit and whichever material you're working on. This makes for faster hole boring while keeping your drill bits in greater shape for longer. You can keep these all tucked away in the included storage solution. The hard plastic case can be tucked away in your tool bag or in Ryobi's Dock-It storage solution. Inside the case are a series of foldout compartments. They're labeled, so you'll know where everything goes when the time comes to put your bits away. They're also coated with rubber, further protecting your bits from the elements until it's time to put them to use. Whether you're a homeowner looking to have a set of bits to use for renovations or other DIY projects, or you're a professional looking to have a handy set of backup drill bits while you're on the jobsite, you can't go wrong with these titanium coated bits from Ryobi.