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blueberrymary
Stranger


Registered: 06/14/11
Posts: 28
Loc: here and there
Last seen: 7 years, 3 months
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Forstner Bits vs. Spade Bits for drilling holes in metal jar lids?
#23431245 - 07/11/16 04:45 AM (7 years, 6 months ago) |
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Are spade bits any good at drilling *clean* holes in a metal jar lid? I've heard good things about Forstner bits and I would probably go for those, but spade bits are a bit cheaper and if they can get the job done, then I can save a few bucks there....
I'm trying to upgrade from using regular bits to drill the holes and man, was that a disaster. I mean, they'll get the job done, but I'm kind of a perfectionist and I like my work (especially when it comes to this hobby) clean, pretty, and organized. The metal burrs on the other side of lid was inconvenient as well. After a shake, WBS kernels would get stuck near the burrs and start colonizing there and just causing a mess. Also, cleaning the lids after use was just absurd, I'd just throw them away.
So I am looking for an improvement from regular bits; will spade bits be any better? Or should I just splurge and go for the Forstner bits?
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Terminally chill. "...You'll see that it is all dancing, clearly alive..flowing with the universal life force and existing in the most sacred way ... And then you remember that this is where you came from, that you are a product of the same moving life force that created everything you see..." -rdnp2035
 
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LocN9ne
ɢᄋᄋd ԲᄋЯ ᄁᄋȚᅢΙᄁɢ ᄂᄋ₩ᄂΙԲᄐ



Registered: 04/17/15
Posts: 7,076
Loc: to the brain
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Re: Forstner Bits vs. Spade Bits for drilling holes in metal jar lids? [Re: blueberrymary]
#23431266 - 07/11/16 05:02 AM (7 years, 6 months ago) |
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Buy one of these if the burrs bother you... All you need to do is drill a 1/4" hole... No need to spend money on a fancy bit...
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Q&A US vs. THEM The more I learn, the less I know.
Edited by LocN9ne (07/11/16 05:02 AM)
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weetsie
unlicensed tub surgeon



Registered: 05/08/11
Posts: 572
Loc: United Kingdom
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Re: Forstner Bits vs. Spade Bits for drilling holes in metal jar lids? [Re: LocN9ne]
#23431272 - 07/11/16 05:20 AM (7 years, 6 months ago) |
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Use a twist drill for your hole then use a larger twist drill as a countersink, just touching enough to remove the burr. If you're completely OCD roll some wet&dry into a tube to remove any microburr that might remain.
-------------------- Active grow logs: Oysters on Straw Pellets Trade list
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Juiceh
Dabbing All Day



Registered: 09/25/12
Posts: 3,208
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Re: Forstner Bits vs. Spade Bits for drilling holes in metal jar lids? [Re: weetsie]
#23431401 - 07/11/16 07:22 AM (7 years, 6 months ago) |
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Try a step cone drill bit. They work great for making holes in lids with minimal burs.
Edited by Juiceh (07/11/16 07:23 AM)
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
Posts: 61,889
Loc: Milky way
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Re: Forstner Bits vs. Spade Bits for drilling holes in metal jar lids? [Re: Juiceh]
#23431579 - 07/11/16 09:08 AM (7 years, 6 months ago) |
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Neither lol. Use the correct bit. 135° split point high speed steel bit. Like 2-3$ then eliminate the user error because those make the best clean holes
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