84 make an end mill or slot drill from a standard HSS drill

difference between end mill and slot drill   Dan difference between slot and port

End Mills are used for making shapes and holes in a workpiece during milling, profiling, contouring, slotting, counterboring, drilling and reaming

A slot cutter has a cylindrical face that is suitable for side cutting On the other hand, an end mill performs plunge cutting and a degree of End mill Diameter is 1 ~ 25, less than 1mm, often referred to as micro-diameter end mill, such as ~ mm in diameter Larger than 20mm

srne slot If you're making a very small hole, say, less than in diameter, go with a drill End mills under become increasingly fragile, and subsequently Drill bits plunge into the material directly thus merely creating holes, while the end mills cut the workpiece laterally thereby creating profiles or slots