Spade drill holder

[jdedmon91]

I just got gifted some spade drill tips. I would like to machine my own holders. I got a close up photo of one off of Goggle. My question is has anyone machined up their own spade drill holders?


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[Toolguy]

There are many different styles of tips. It depends which ones you have.

[Tim Clarke]

If you subscribe to the Magazine, there was an article about making the holder for whatever style the author had. Prolly a couple years ago now.

[Corbettprime]

If you subscribe to the Magazine, there was an article about making the holder for whatever style the author had. Prolly a couple years ago now.

If they are 1/4" hex, take $ 10 to HD, get a Irwin 12" extension with a quick release clutch. I had to drill 20 ea. 1 1/2 holes 6" deep in cherry, no problems except for a sore wrist.

[Toolguy]

I think he is talking about metal spade drills, which are a lot different than wood spade drills.

[reggie_obe]

If they are 1/4" hex, take $ 10 to HD, get a Irwin 12" extension with a quick release clutch. I had to drill 20 ea. 1 1/2 holes 6" deep in cherry, no problems except for a sore wrist.

One of these: https://www.ebay.com/itm/Waukesha-Sp...ox!08817!US!-1
not one of these: https://www.ebay.com/itm/Bosch-DSB10...a6855134a3dc4f

[jdedmon91]

Yes the metal kind like in the upper. Mine has a notch and one hole


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[jdedmon91]

If you subscribe to the Magazine, there was an article about making the holder for whatever style the author had. Prolly a couple years ago now.

I’ve subscribed for several years, but don’t remember the article. Can you reference it. I’m assuming your speaking of Home Shop Machinist


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[alanganes]

Not sure if this is the article that you are thinking of, but a quick search of the article index found this:


Spade Drill Holder Don Wiederhold Shop Accessories HSM Vol. 34 No. 1 Jan-Feb 2015 24

I don't know if I have that particular issue so I could not look to see the details, but it sounds like what you are after.

[PStechPaul]

The following link shows how a spade drill bit holder might be constructed:

https://www.carbideanddiamondtooling.com/Spade.Drills.Throw.Away.Blades.Insertable.Bodies

The patent may give you some ideas:

https://patents.google.com/patent/US4060335A/en

[jdedmon91]

Thanks to both of you. I appreciate it.


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[alanganes]

Thanks to both of you. I appreciate it.

Now I need to go digging through my stuff to see if I have that issue here someplace.
Looking forward to see what you come up with!

[jdedmon91]

Now I need to go digging through my stuff to see if I have that issue here someplace.
Looking forward to see what you come up with!

I’ll look to see if I have that issue, it may be one I let a friend have. My plan is to use rage blade, the photo and work out the first holder. Even used holders on EBay is expensive.


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[Tim Clarke]

I’ll look to see if I have that issue, it may be one I let a friend have. My plan is to use rage blade, the photo and work out the first holder. Even used holders on EBay is expensive.


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I just looked at my copy, it is Jan/Feb 2015. The article shows a holder for 130 degree spades. I don't know if flat bottom spades work with the same holder or not.

[old mart]

All of the big names such as Sandvik and Kennametal produce this type of drill system, but there is no standardisation you could rely on.