Re: valve seat cutter
I use Neway and seems to me they are made in Australia. They also work great on Stellite seats as well and what I like about them is you don't spray all of your open cylinders and valve/lifter valley with stone grit, and metal filings as well! When it gets down to setting valve clearance they are great as well giving much more precise control for small increments of bringing down the valve to reduce tappet clearance. As for the three angle, it is also used to narrow the valve seat contact area if it's too wide and or the important position of your contact area. Too high and near the top edge of the face needs a top cut and too low a bottom cut but of course if the contact area is too high and can't be lowered a new insert is required.
Simply great tools and allows taking off the bare minimum instead of a pneumatic seat grinder and no stone dressing required! Now I wonder if they have the large adapter insert that you install when the guide is removed like the older Soix seat grinder?
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