+ Fits onto your impact tool without an adapter + Durable titanium blades + Guide tips make it easier to drill holes in metal + Standard bit set with case - Value My little Dewalt Impact is a better one Drill than my drill. If something goes wrong, your drill will break your wrist. If something goes wrong, your punch will drown out the daylight of your drills and save your wrist. These drills fit directly into the loft without an adapter. Just throw the drill away. These drill bits are titanium coated which means the steel will last a long time if they don't get hot but you can't sharpen them. Use cutting fluid for thicker metals. Pilot hole tips are perfect for little boys like me who have a hard time starting a hole with big chisels. Don't be afraid to use a demolition hammer here and there, these bits can handle it. They don't really have any downsides except that they're expensive and they can go bad if you break them up a bit or heat them up and dull them.