Step bits with long shanks... Do they exist?

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Old 01-17-13, 09:59 AM
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Step bits with long shanks... Do they exist?

Whether I'm searching on Amazon or eBay, I only see step bits with very short shanks. LIKE THIS. What can I do? Are there such things as extensions? My step bits are 3/8 for the chuck, but I'll buy 1/2 if I need to. I just want to find ones with longer shanks, 4 to 6 inch will do.

Please advise. Thank you!
 
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Old 01-17-13, 10:13 AM
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Ooh, just found this... BIT EXTENSION. It says it's for Forstner Bits. Does it matter? Does it matter if I use it with my TITANIUM STEP BITS?

Looks perfect because it has the set screws to hold bit in place.
 
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Old 01-17-13, 10:21 AM
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Looks like it should work. My only concern is if the outside diameter of the extension is greater than the largest step on the bit. That would prevent any deep drilling.
 
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Old 01-17-13, 10:30 AM
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.


That extension will work as long as the shaft diameter of the step-drill is 3/8"

But.....step-drills are meant for through holes in thinner material.....not deep blind holes.

They are meant to drill material that has a thickness less than the distance between each step.


.
 
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Old 01-17-13, 10:38 AM
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Awesome. I was concerned you can only used wood bits with that.
 
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Old 01-18-13, 05:52 AM
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May or not pertain, but forstner bits have round shafts. Not sure how something with a hex shaft will work with these extensions. If not a clean fit, seems to me you will get some wobble out of your bit once hooked up.
 
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Old 01-18-13, 01:31 PM
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czizzi, if you look at the picture that the OP posted, his step drills have round shafts. I have also seen hex shafts, but his appear to be round.
 
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