Our extended-length hole saws are perfect for fabricators who are tired of wasting time notching with standard depth hole saws. Finally, you can notch without a grinder! Stock up and be prepared for any notching job, even off-angle. Fine tooth pitch allows for cleaner cuts and increased performance on thin material Deep Saws are also great for contracting and construction work, able to cut through thick materials without the need for a spade bit or chisel These are our design, and they are imported. The max angle you can notch (from perpendicular, like a “T” notch) on each saw, at the end of the tube (like you would normally notch), without using a grinder like you always have: 1.50 – 60 degrees 1.625 – 57 degrees 1.75 – 54 degrees 2.00 – 48 degrees Fitment notes- These work with many notchers (they have the same threads as any other hole saw). Check your notcher to see if you have room to run these.