This is called a reseating tool and is used to grind away cracks on the seat of a tap or valve.
There is an issue here that is not being discussed. If you grind the valve seats, for what ever reason, you must grind the valves also, otherwise you will not have a matched valve and seat assembly. Doing one without the other, will be a learning curve you don't want to experiment with. If the valve and seat do not match perfectly, your just spinning your wheels as the end result will be a whole lotta work for nothing. When you think about the massive pressure's and extreme heat that is created during the combustion process, that last thing you want is a set of mismatched valves, trying to hold it in the cylinder area. Also lets not forget about the fact that when you grind a valve seat, your allowing the valve to seat deeper into the head and the last time I checked they don't sell valve stem lengthening kits. You are not moving the camshaft, it stays the same, but the valve stem moves farther away from the cam when you grind the valve seats. So if ya hear a bunch of clackey valves when you first start the engine, you will understand why they don't sell valve lengthening kits.
it is a tool that resurfacese the seat on a water faucet valve
The optimum way is to remove (unscrew with a seat wrench) the seat and replace it. A seat cutter tool may be used to refinish the seat in place.
For countersinking stainless steel at 82 degrees, it is recommended to use a single-flute countersink tool made from high-speed steel or cobalt. This type of tool will provide the necessary cutting force and durability to effectively countersink the stainless steel material without causing damage.
Yes it can be repaired to a point. There is a tool called a reseater which grinds the valve seat to make it smooth and grind out fine cracks. The seat can only be reseated a number of times before its too flat in which case the tap would then need to be replaced.
Self-countersinking screws in woodworking projects offer the benefit of creating a flush and professional finish, reducing the risk of splitting wood, and saving time by eliminating the need for manual countersinking.
It is the "Advertised duration", used by the factory. It is the Valve timing from when the valve is .006inches off the valve seat to .006" off the valve seat.
The valve face
yes
Better heat distribution. The exhaust valve sees a lot more heat.
To replace a basketball valve, you will need a valve tool, a new valve, and a pump. First, use the valve tool to remove the old valve from the basketball. Then, insert the new valve into the hole and use the tool to secure it in place. Finally, use a pump to inflate the basketball and test the new valve to ensure it is working properly.
the valve transfers the heat to the valve seat (when the valve is closed)
To perform a faucet valve seat replacement, you will need to turn off the water supply, remove the faucet handle and trim, unscrew the valve seat using a seat wrench, clean the area, and install the new valve seat by screwing it in place. Finally, reassemble the faucet and turn the water supply back on to test for leaks.