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Review on πŸ”ͺ Enhanced Cutting Tools: LENOX Tools Bi-Metal Speed Tech through Hole Saws & Accessories by Luke Hodes

Revainrating 5 out of 5

RPM for the material you are cutting.

These bits are great. However, if you do not know the correct RPM for the material you are cutting, you could damage the bit. I use them to cut holes in truck bodies to attach a fifth wheel. Make sure you have a large drill that spins at lower RPMs, 60 to 100, or you will damage the drill.

Pros
  • Optimized tooth shape easily penetrates metal
Cons
  • Not bad, but...