Drilling through cast iron tub. The goal is not to burn the bit two fast and to make progress with a small metal shaving just right speed. When drilling rolled steel the material drilled from the hole will work in a spiral from the tip of the drill bit. Remember to seal the screws with rtv rubber grommets so the rail is. Drill cast iron easy with carbide annular cutter drill bit carbide hole saw drilling large hole is solid cast iron.
Its an old german model. Any tips tricks or caveats youd like. I called a friend for advice and he told me basically just to use a sharp bit and use fluid. Any bit intended for drilling through metal will drill through cast iron.
To drill a hole the enamal must be removed so that the diamond core or drill bit can. Begin drilling slowly with the point of your porcelain bit on the dot you marked on the masking tape. I spent 30 min drilling through one hole. Hold the drill so that the bit is as nearly vertical as possible while it is turning.
I have it on rubber feet and i want to put a mobile base on it as well. I have a cast iron lathe from the manufacter denn. Moreover you dont have to be overly choosy about your drill bit. Drilling holes in metal or cast iron is difficult because it involves the removal safely of the enamel first.
Cast iron drills differently than other types of steel due to the variations in the steel structure. Then it will stop making a hole when it comes to the iron. Ok you have a metal or cast tub it takes a bit more pressure and time if the drill bit is sharp. Youre usually pushing as hard as you can which is ok and your finger naturally pulls the trigger all the way because it is dif.
Cast iron is brittle but as far as metals go it isnt very hard so drilling a hole into it isnt as difficult as you might expect. I need to mount a bracket for a glass partition directly to the deck of the tub which means drilling and tapping a hole in the tub. Give it some more pressure and time and you will punch through. Most people tend to overspeed a handheld drill which burns off the cutting edge sharpness if the speed is too high.
Would i be advised to use a diamond bit to cut through the porcelain before switching to the metal bit for the cast iron. The first bit will drill through the porcelain only.