✍✍Fine machining, under fine internal and external ground. ✍✍Taper shank drill chuck is used to improve working efficiency. The drill sleeve is used to change the taper of the connecting shaft. ✍✍High surface finishing, mainly for drilling and turning machines. ✍✍Facilitates high torsion applications, such as large cutting diameters. ✍✍Can be used with tapered shank drills, tapered shank cutters and tapered reamer.
The inner cone on the MT4-MT2 adapter is at least 1/2" smaller. This means the standard length MT2 cone will come out of the ground before it sits in place. The only way to get an adapter to use consists of cutting some off the end of your MT2 cone, this will seat it all the way, but then the back of the MT2 cone won't match the slot on the adapter so you won't separate them with a cone mandrel like you might be able to should save a few bucks more and buy another one.
Pros
✍✍High surface finish, mainly for drilling and lathes.