The grinder has an 8mm ID spindle, so it can also grind valve tips. Junk valve chucked up. Note crazing/cracking of tip.
Valve tip ground flat/square. About 0.003"-0.004" removed, saving the stellite surface.
Grinder locked into 90° position. Spinning valve slowly fed in.
The grinder has an 8mm ID spindle, so it can also grind valve tips. Junk valve chucked up. Note crazing/cracking of tip.
Close-up of finished adjuster, 19mm radius.
Polished tip. Reflection is the overhead strip lighting.
Next step, polish the radiused tip.
Finished grinding to 19mm radius
TwoManyXS1Bs

The grinder has an 8mm ID spindle, so it can also grind valve tips. Junk valve chucked up. Note crazing/cracking of tip.

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8mm Grinder
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