OXA Wedge Type Tool Post Set For Mini Lathe. Made of steel, not Aluminum. Perfect for 7 x 10", 7 x 12", 7 x 14. Most mini lathe use bolt mounting, if the original bolt is not suitable, you can use Any Suitable Threads Bolt of your own to mount it on your lathe. If your lathe is T Slot mounting, you can use the Oversize Blank T Nut comes with the set to mount, just machine the Oversize T Nut to fit in your lathe T slot. Whole set includes one each of. 250-000 Wedge Type Tool Post. 250-002 Boring, Turning Tool Holder. 250-004 Heavy Duty Boring Bar Holder, can use two size boring bars ...