I have compressed hundreds of aluminum cans and my invention looks and handles like it did the day it came into being. I then placed a twelve inch by three inch section of acronitrilebutadienestyrene pipe into a toilet flange of the same measurement and material and I place two empty soda cans into the pipe and used the sledge hammer to ram the two cans, sometimes three cans into compact little hockey pucks of aluminum. Both sides of the 2X4 stud were held in place with GRADE EIGHT nuts and stainlesss steel washers. On the other end of the 12 inch and 5/16ths rod I placed a 12 inch 2X4 stud with a hole in the exact center. I then got a stainless steel 5/16ths all thread rod that is 12 inches in length and I inserted one end through the hole in the sledge hammer and I used a GRADE EIGHT nut on the end of said rod and another GRADE EIGHT nut on the sledge hammer face side of the rod and torqued both GRADE EIGHT nuts down. It was a Garr drill bit and I bought two. After adjusting the table the drill bit bored through and I had my hole. I placed the carbide drill bit into the drill press and I began drilling without lubricant and the carbide drill bit began to produce metal shavings and long squiggly strands of metal shavings. I went back to the computer and I researched more carbide drill bits and came up with a brand name and I ordered two. I placed the sledge hammer head on the ground and placed the drill bit tip on the sledge hammer head and tried two different speeds and I placed all my weight on the Dewalt yellow drill. I then went and bought a bunch of drill bits marked COBALT and TITANIUM and I tried a few from each category with a new Dewalt yellow drill. I contacted the owner of the site and he began making excuses so I cancelled the order and he exploded in anger. So I looked up the correct drill bit but it was not long enough. When I looked up said drill bit on his web site the drill bit he recommended was not intended to drill into sledge hammer grade steel. One retailer tried to sell me a drill bit telling me that it would do the job. I began calling around the country and one thing I ran into is the retailer who expressed his concern that the drill bit would break and I would call him very angry that a drill bit broke. Can you possibly relocate the hole as I did? HSS bits worked just fine in the new locations. I couldn't sell that part so I filled the partial hole with epoxy and kept it for possible replacement use in a pinch. Luckily the part was circular and symmetrical and I could shift the location of all the holes with no loss of functionality. In the end, I had to drill in another place. I purchased a couple of carbide bits and they also shattered. It is possible for steel to have super hard inclusions in it. Again, with all the cautions I listed above. Look up the proper speed and feed and try to come as close to it as possible.īut I would give it another try with HSS first. Then I would use the fine down feed to do the actual drilling. And I would lock down all the table movements TIGHT. Any movement while drilling would almost certainly result in a broken bit. I would have that hammer head very securely clamped down to my mill table or in a vise on it. If I were using a carbide bit, I would not attempt this with a hand drill or even with a drill press. Post a photo.Īnd what machine, if any, do you have to do this drilling. See how much of a dimple you can make in it where the hole is to go. You can do a rough hardness test with a center punch and a hammer. Diameter of the hole? Location of the hole? On the striking face? Or where? I think some more information here would be useful. And there are many different grades of carbide. There are many different sledge hammers in many conditions (new, used, beat to heck, whatever).
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