can this be used to sharpen slugge bits
I wasn't familiar with the term "slugge bit" so I did a search and the closest thing I came up with was slugger bit. If those are the bits you're asking about I don't think the DBS-22 would do the job but perhaps someone else better qualified than I will chime in.
You might want to check this out:
http://www.oceanmachinery.com/rush-machinery-drill-sharpener-rush-machinery-drill-grinder-.htm