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What is the best way to drill through a 5 cm long metal beam without wasting more than 3 bits?
EvhCo2000gp3410
Assuming the beam is made of steel you must use a special hardened bit, run the drill very slowly, use lots of cutting oil to lubricate and cool the bit, and you can successfully drill as many holes as you need with only one bit.
If you allow the bit to get hot it will lose its temper and the cutting edge will break down, rapidly destroying the bit.
If I recall correctly the last time I drilled a hole in stainless steel I needed to buy a $20 bit, but by going very slow and using lots of cutting oil I got the hole drilled. No way I could have afforded to buy a second one of those bits then (let alone 3)!!!!!!
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∙ 7y ago
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