The photos show everything. This is a very old tool, but I do not know just how old. There are a couple patent numbers that you can see in the photos, I'm having difficulty looking them up, because I'm not quite certain exactly what the numbers are. This is a very nice antique collectible tool and would look great on display.  It is made to accept a chisel. I have several other similar welding tools available in my other auctions. They are shown in the last five photos, they are not included in this auction. I offer combined shipping. If you win more than one, you must wait for me to send you an invoice with combined shipping. If you pay for them individually, they will be shipped individually, with no shipping discount. THESE WILL SHIP USING UPS, FEDEX OR USPS, WHICHEVER I SELECT AT TIME OF SHIPPING.