Am I a Dumbass or what
for future reference: What if you ground a metric bolt (just undersized) and cut 2 deep grooves in the end like a cross so you end up with a 4 flute ended bolt?
for future reference: What if you ground a metric bolt (just undersized) and cut 2 deep grooves in the end like a cross so you end up with a 4 flute ended bolt?