OldTools Archive
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271515 | Christian Gagneraud <chgans@g...> | 2020‑07‑18 | Weird spade bit |
Hi there, Here is the weird spade bit i talked about in my last email: https://www.trademe.co.nz/Browse/Listing.aspx?id=2697358799&archive=1 The rightmost one. Got distracted and forgot about this auction... This bit seems to have a spoon end instead of a brad point. Has anyone seen this kind of bit before? What could be the advantage of such a bit? Maybe to drill at an angle? Chris, Back from holidays |
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271522 | Christian Gagneraud <chgans@g...> | 2020‑07‑20 | Re: Weird spade bit |
On Mon, 20 Jul 2020 at 16:28, Mick Dowling |
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271523 | Mick Dowling <spacelysprocket@b...> | 2020‑07‑20 | Re: Weird spade bit |
Chris It’s got a solid end. The end fits in an existing hole and the cutter makes a bigger diameter hole. Most likely for making a hole for a plug. Seen them in old catalogues. Mick |
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271524 | Mick Dowling <spacelysprocket@b...> | 2020‑07‑20 | Re: Weird spade bit |
Chris Found this; https://www.ebay.ie/itm/Vintage-5x-GERMAN-Pattern-Centre- DECK-DRILL-BITS-Old-Antique-Hand-Brace- Tool-153-/202091588357">https://www.ebay.ie/itm/Vintage-5x-GERMAN-Pattern- Centre-DECK-DRILL-BITS-Old-Antique-Hand-Brace-Tool-153-/202091588357 <https://www.ebay.ie/itm/Vintage-5x-GERMAN-Pattern-Centre-DECK-DRILL-BITS- Old-Antique-Hand-Brace-Tool-153-/202091588357">https://www.ebay.ie/itm/Vintage- 5x-GERMAN-Pattern-Centre-DECK-DRILL-BITS-Old-Antique-Hand-Brace- Tool-153-/202091588357> Mick Dowling |
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271525 | "yorkshireman@y..." <yorkshireman@y...> | 2020‑07‑20 | Re: Weird spade bit |
Mick’s right of course, It’s for counterboring, when you forgot to cut the larger diameter first. Not that I’ve ‘ever’ done that. Then had to make up a plug of the correct diameter, use the original bit to mark the centre on the plug, and use THAT as the centre of the required counterbore. If only I had a set of counterbore bits.. Richard Wilson Taalkin proppa in Northumbria |
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271527 | Ed Minch <ruby1638@a...> | 2020‑07‑20 | Re: Weird spade bit |
Shipbuilders use a modern version of that for traditional *l*ctr*c drill motor. For enlarging an exisitng hole, orfor making a counterbore area around an exisiting hole https://twen.rs-online.com/web/p/counterbores/0131870/ Ed Minch |
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271529 | John Ruth <johnrruth@h...> | 2020‑07‑20 | Re: Weird spade bit |
GG’s In the metalworking world, such a tool is called a “counterbore” John Ruth Sent from my iPhone |
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271531 | Kirk Eppler | 2020‑07‑20 | Re: Weird spade bit |
I’ve seen the name piloted counter bore for the modern tool. I have one Set that has inter changeable pilots, and Various drills. Great for cutting recesses for saw medallions I’d assume, since I have not used it yet. But it’s only been six years, no need to rush into things like this. Lower right hand corner fir pilots. https://kirkhmb.smugmug.com/Woodworking/Woodworking-Tools/i-RvBRKZ8 Kirk in HMB, who used my mitre box yesterday, to show a bunch or my other tools how it was done in the old days. On Mon, Jul 20, 2020 at 12:56 AM Mick Dowling |
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271532 | Tim <tpendleton@g...> | 2020‑07‑20 | Re: Weird spade bit |
On Monday, July 20, 2020, Kirk Eppler via OldTools |
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271533 | scott grandstaff <scottg@s...> | 2020‑07‑20 | Re: Weird spade bit |
I keep a lot of counterbores. You aren't really fitting saw screws / medallions without one. Plus a lot of other jobs. The aircraft industry uses a lot of them so hunt in the town where they make airplanes. They practically give used ones away. You'll have to resharpen but sheesh thats 40 seconds out of your life. hahah They are very easy. I silver soldered a brass plug to the end of a spade bit once, for a really oddball counterbore I needed to make. I can dig it out and take a pic but it looks just like what you thought it would look like. yours scott -- ******************************* Scott Grandstaff Box 409 Happy Camp, Ca 96039 scottg@s... http://www.snowcrest.net/kitty/sgrandstaff/ http://www.snowcrest.net/kitty/hpages/index.html |
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271534 | "yorkshireman@y..." <yorkshireman@y...> | 2020‑07‑20 | Re: Weird spade bit |
> I can dig it out and take a pic but it looks just like what you thought it would look like. and THAT is going to be one of my sayings of the month, nay, of the year. Richard Wilson making feet in Northumberland |
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271537 | Christian Gagneraud <chgans@g...> | 2020‑07‑21 | Re: Weird spade bit |
On Mon, 20 Jul 2020 at 21:08, yorkshireman@y... |
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