The second link that I posted (bench pillar advice for schools) says that cooling fluid isn't required so such small holes in thin stainless. It does however recommend a centre punch.
Very disappointed with my "Industrial Cobalt" DeWalt drill purchase
- Thread starter DIYalot
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The second link that I posted (bench pillar advice for schools) says that cooling fluid isn't required so such small holes in thin stainless. It does however recommend a centre punch.
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Then again, this: "Stainless steel isn’t the hardest metal around, but it is challenging to work with. The biggest issue is the risk of work hardening. If the cutting speed of the drill is too high and the feed is too slow, the heat generated can harden the material – making cutting more difficult." (R.D.Barrett). Which has already been brought to light I know. Still, I'm still of the opnion that these DeWalt drills are poor with stainless steel. But, maybe other makes are too.
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Having done lot of stainless worktops we found a center punch, pilot hole and then the hole size drill worked fine, drills can be sharpened using an angle grinder
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