series-hybrid t1_isa7ts5 wrote
wrap a wet cloth near the cut to wick heat away, on both sides of the cut. A thin abrasive disc in an angle-grinder is exactly the tool. Stop often to let it cool.
MmmPeopleBacon t1_isa8c7d wrote
This is the most correct answer
series-hybrid t1_isa8x25 wrote
Thanks!
paulmarchant t1_isaaqe5 wrote
Also, cover the bit of the rail you want to keep to avoid surface finish damage from hot sparks. Tape is fine, aluminium foil is fine.
Buchaven t1_isb1329 wrote
One last addition? Don’t forget to deburr! Trying to slide a bearing or bushing onto the home cut end could be problematic. Once the cut is finished, use the grinder to put a SMALL chamfer on the end so you guarantee you don’t have any burrs sticking out past the original outer profile.
series-hybrid t1_isb3ghq wrote
Well done! No circumcision is complete until the deburring is done.
series-hybrid t1_isap8r3 wrote
Good point. Sparks actually do damage...
Lightingcap t1_iscd79u wrote
Jumping on to the top comment to add: make sure you wear a face shield AND safety glasses. And be very careful you don’t skew the blade to one side or the other. Thin cutoff wheels will shatter.
series-hybrid t1_isf3lw6 wrote
I agree, good point (PS, I have scars)
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