Drill holes with end mill or twist drill ?

what is a slot drill bit used for   Dan what is dimm slot

I have long been of the understanding that a slot drill and an end mill are two different things in so much as, a slot drill can be used to bore a hole into

Slot drill bit · Multi-purpose carbide drill bit · Wood plug hole cutter drill Multi-purpose carbide drill bit great tools carbide drills Source End milling is performed to cut features like slot, walls, fins, columns, webs, etc Drill is the cutting tool used for drilling operation

roulette european slot Slot milling is a machining process in which a rotating tool with multiple cutting edges is used to create grooves in a workpiece  I used this method often in 5 axis work when this type of slot Can this drill bit be used to start the hole,without center drilling first?