I went to home depot and went to both sections they sell sand paper and the highest grit they had was 600?? I have read for CPU's 300->400>800>1200 is one popular path to lapping. well i am lapping my heat sink and applying some AS5 to attempt to get better temps. What grit should I go for and does any one know why a huge hardware store such as home depot only had up to 600grit?
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