Try drilling at a slower speed, approx 1500 - 2000 rpm, (or even slower if you like) to reduce the heat build up which causes the drill bit’s cutting edge to go blunt,
If you’re using HSS twist drill bits (high speed steel) try using Black Oxide or Cobalt Steel twist drill bits as these will last longer.
You could use a [https://www.bunnings.com.au/3-in-one-multipurpose-oil-lubricant_p6100773|multipurpose oil -example only] to reduce the friction and therefore the heat build up but it may be a bit hard to apply if you’re drilling into the side of the container and not down onto it so the oil stays there.
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Pine is a soft wood so you won’t harm the drill bit.
Hi @ramses2 ,
Try drilling at a slower speed, approx 1500 - 2000 rpm, (or even slower if you like) to reduce the heat build up which causes the drill bit’s cutting edge to go blunt,
If you’re using HSS twist drill bits (high speed steel) try using Black Oxide or Cobalt Steel twist drill bits as these will last longer.
You could use a [https://www.bunnings.com.au/3-in-one-multipurpose-oil-lubricant_p6100773|multipurpose oil -example only] to reduce the friction and therefore the heat build up but it may be a bit hard to apply if you’re drilling into the side of the container and not down onto it so the oil stays there.