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I need to drill some steel angle iron.6mm thick now do i drill on low speed,do i use a small drill bit first as i need to drill 10mm holes thanks
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Peace,Max signature height = 80px
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Use a good sharp drill bit, keep the speed fairly low and press on hard - use a cutting fluid (wd40 works at a push) to keep things lubricated and cool. If it "squeals" then you're too fast or too hot.
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Thank you
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Peace,Max signature height = 80px
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No worries  |
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Is that .6mm or 6mm?? (quite a difference!) .6mm should be dead easy....but make sure you have a sacraficial block of wood underneath and drill through the steel well into the wood. The wood stops the sheet from bending/distorting and also helps the hole stay cleaner when you break through (clamp all parts down  ) - Cutting fluid shouldn't really be needed in this sort of thickness. If it's 6mm then as Cobblers says, use a slow cut, take your time and keep the bit cool. Sharp bits make the world of difference. Be careful that the bit doesn't 'catch' as it breaks through (can try to spin the drill out of your hand or send the metal spinning if its not clamped down) and try to keep the drill steady & perpendicular to the work. A good centre punch in the correct spot to help the bit get started is always important. |
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Get decent drill bits!!! These did the job (but have now dulled)  They drilled this out (about 10mm of steel):  |
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) - Cutting fluid shouldn't really be needed in this sort of thickness.
