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Just cut an A574 bolt, grade harder than 8, (metric 12.9, vs. metric 10.9=grade 8) for a stud. Evolution saw really works! : r/Machinists
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5pcs Black Saw Blade Bolt M8x18mm Left Hand Thread Saw Blade Reversible Screw Hex Head Flange Tool Parts - Nut & Bolt Sets - AliExpress
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