Loose Set Screw

[dusty]

These posts made me curious, so I went and checked all of my saw arbors (8) and drill chucks (2), and all set screws are flat point and match Dusty's list. The set screws in the two 5/8" saw arbors are 3/8" long and have what looks to be flat brass tips. I wasn't able to find a part number for those set screws.

Mike

I don't know about brass tipped set screws. My guess would be that the brass tip is softer and is intended to be used where a harder tip could do damage. I also don't know where that would most likely be.

But, if it is working, don't fix it.

If you go to the Fastenal site you may find the brass tips listed there.

[skou]

As for Steve, realize his set screws are a size bigger(3/8-16?) as is his wrench(3/16).

True, mostly.

Actually, I've got 3 different sizes of allen wrenches. The 3/16 mentioned, a 1/8 and the standard Mark X size, for my later stuff.

steve

[JPG]

True, mostly.

Actually, I've got 3 different sizes of allen wrenches. The 3/16 mentioned, a 1/8 and the standard Mark X size, for my later stuff.

steve

And many(not all) have two smaller set screws.

Don't tell Dusty!;)

[rlkeeney]

Which one should be used for what purpose?

To me like the oval point would work well for mounting arbors unless the hole is at an angle then a flat point might be best.

What about set screws for mounting router bits? Certainly not a cup center.

Would set screws with brass tips work for mounting router bits without damaging the shank?

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[rlkeeney]

Seems like the flat point and the oval point would be the best for mounting pretty much anything that isn't permanent.

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I use my Shopsmith outside and I can just see me dropping a set screw and never finding it. I'd like to have a stash of the right ones on hand just in case.

[dusty]

Which one should be used for what purpose?

To me like the oval point would work well for mounting arbors unless the hole is at an angle then a flat point might be best.

What about set screws for mounting router bits? Certainly not a cup center.

Would set screws with brass tips work for mounting router bits without damaging the shank?

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In my opinion, the best source of information needed to answer these questions is the individual users manual.

Brass points are soft so as to not damage the mating surfaces. Router bit shanks are certainly not soft or thin.

The set screw for mating with the the Shopsmith spindle is set at an angle because the spindle shaft is tapered. Therefore, flat meets flat

An excerpt from Fastenal Spec Sheet:

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[rlkeeney]

Brass points are soft so as to not damage the mating surfaces. Router bit shanks are certainly not soft or thin.

Years ago I damaged a router bit shank with the set screw and stopped using it because of this. Perhaps I need to dig it out and see if It has the correct set screws in it.

The set screw for mating with the the Shopsmith spindle is set at an angle because the spindle shaft is tapered. Therefore, flat meets flat

That's good to know. I need a hand full of these in the appropriate sizes.

[dusty]

Years ago I damaged a router bit shank with the set screw and stopped using it because of this. Perhaps I need to dig it out and see if It has the correct set screws in it.


That's good to know. I need a hand full of these in the appropriate sizes.

Where do you use router bits that are secured with a set screw? I gota go look to see if I have any router bits with flats. I think that in all of my applications the router bit is secured with a collet.

[dusty]

Jerome, have you determined what must be done to secure your arbor set screw so that it remains secure?

I hope that some of this discussion has given you some clue to a solution.

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Where do you use router bits that are secured with a set screw? I gota go look to see if I have any router bits with flats. I think that in all of my applications the router bit is secured with a collet.

Actually two of them.]http://www.shopsmith.com/ownersite/cata ... shield.htm[/URL]