I have a Delta 14-650 hollow chisel mortiser. It uses the standard Delta 5/8" shank chisels, which limits it's capacity to 1/2". I would like to have the option to use it for larger diameter mortises.
I've noticed that most of the standard mortisers from other companies utilize a 3/4" shank chisel, instead of Delta's 5/8" shank, and that there are a lot of companies producing 3/4" shank bits.
My machine uses a 25mm o.d. (.984) bushing, with an I.D. of 5/8" (.625) where the chisel's fit into the mortiser.
CMT's 3/4" shank bits on Amazon reference that an adapter bushing is required to use their chisels with my Delta machine, however I can't find one listed anywhere.
Does anybody know where I can purchase an adapter bushing?
Thx.
Scott