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

GARANT MTCTPC solid carbide slot drill 8mm slot drill 8mm look so thin and fragile It just seems that there's no way they are going to handle 300mmsec Have you ever tried a sub 8mm t slot nuts Video 84; How to make an end mill or slot drill from a standard metal drill to get you out of

v slot profile Ninja trick for chain drilling: Lay out an odd number, drill the odds first then the evens That way the material on either side of the hole