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3 Inch Deep Hole Saws for Tube Notching, M42 Bi-Metal

(2 customer reviews)


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Finally you can notch without a grinder! These are excellent quality bi-metal hole saws at a great price (compare to other 3 inch deep hole saws at over $50 a piece!). Stock up and be prepared for any notching job, even off-angle. SEE NOTES – READ WHOLE DESCRIPTION.

*High Quality M42 HSS teeth stay sharp

*Bi-Metal Construction for safety/longevity and shatter resistance

*4/6 TPI variable pitch

*Extra Deep 3.0″ cutting depth

*5/8-18 threads on 1 1/4″ cutting diameter and larger (so each one of these deep saws uses our standard “Large” arbors)

These are our design and they are imported.


Fabricator pack – This includes (2) 1 1/2″, (2) 1 5/8″, (3) 1 3/4″, and (1) 2″ hole saw


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. On our tubing notcher, we recommend an extended frame, which we sell. All notchers are shipping with this extended frame standard as of the release of these longer hole saws.


2 reviews for 3 Inch Deep Hole Saws for Tube Notching, M42 Bi-Metal

    This thing makes notching a hole lot more productive. Sure there are limits but we can now make longer cuts and punch through more material.
    Eric Brown
    Prior to finding these hole saws, I was severely limited in the angle and depth of notch. I was building a stair rail and was unable to notch the tubing completely with the "standard" hole saws available. Had I known about these I would have eliminated the frustration of trimming, grinding, filing, and would have had better fit-up.
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