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Review on πͺ Cobalt General Purpose Deg Split Drilling: Cutting-Edge Efficiency for All Drilling Needs by Greg Mahoney
Not suitable for stainless steel
The description states that these drill bits are good for drilling steel, stainless steel and even wear-resistant steel. We drill 304 stainless steel under 5/32" thick and after only 3 holes the tip is fully rounded. I'm sending them back. Please note: We purchased a Dewalt product and drilled over 20 holes with a drill. It looks almost new apart from a slight discoloration from heat.
Pros
- jobber drill bit
Cons
- weak
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