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262059 John Ruth <johnrruth@h...> 2017‑03‑24 BRAND NEW Hollow & Round Irons Available from Corradi SpA in Italy
GG's


Got any hollow or round molding plane bodies which lack irons?


http://www.corradishop.com/index.php?main_page=product_info&products_id=53


Copied & Pasted from their website:


"GOLD Molding Plane Irons
CORRADI GOLD molding plane irons are manufactured according to sizes, sections
and tolerances of the British tradition.
They’re made using ledeburitic tool steel which provides a high edge retention
and reduced brittleness, thanks to a heat treatment done according to the
highest quality standards reached by Corradi SpA’s century old manufacturing
know-how.
They’re hardened and tempered up to 61-62 HRc and, despite their high hardness,
they well work even on heavy duty applications on very hard or abrasive wood
without chipping or breaking.
The blade is hardened to a length of 30 mm from the cutting edge which allows,
if necessary, further multiple resharpening.
The blade is ground on both sides with classical tapering (blade thickness 1/8”
– tang thickness 1/16”) and lapped on the cutting side as to obtain an excellent
cutting edge.
The irons are packed in carton boxes each containing a pair of blades (concave
and convex) already shaped and sharpened, ready to use, with individual plastic
protecting cap, each blade wrapped in wax paper.
Each blade has its own number and the brand “CORRADI GOLD” stamped on the
cutting side.
Radius of the arc the iron cuts equals the above width of the blade and it’s
calculated for 55° bedded planes.
All the irons are individually checked before packaging to avoid any defects and
ensure the correct coupling of the concave iron with the convex one.
Raw material, design and manufacturing of the irons are completely made in
Italy."

Look at that, would ya!  They even understand the need to taper the irons!  They
understand the issue of bedding angle! (IIRC, 55 Degrees is "York Pitch")

Pricey, yes, but think of how much work this would be to make it yourself, with
the taper.  And, if you have the original wedge, it was probably made to match a
tapered iron, so buying these tapered irons avoids re-working the wedge, which,
in turn, preserves collectability of the plane.

Wow. Just "Wow!"

John Ruth
Metuchen, NJ
262060 Dragon List <dragon01list@g...> 2017‑03‑24 Re: BRAND NEW Hollow & Round Irons Available from Corradi SpA in Italy
as those are sold in pairs, the price isn't even that bad...

if you're going to spend the time to build a set of hollows and rounds,
that might be a nice way to kit them out.  a quick search on "ledeburitic
tool steel" implies a powdered steel, though, with a working quality not
dissimilar to D2...which might be fine, but it might be a real pain in the
hoompah to sharpen.

best,
bill
felton, ca
262061 Ken Shepard <waruba@c...> 2017‑03‑25 Re: BRAND NEW Hollow & Round Irons Available from Corradi SpA in Italy
I get my H&R blades from Lie Nielson.  They are of excellent quality and
considerably less expensive than the Corradi blades. They are blanks,
however and must be shaped to fit your plane.

Ken Shepard
262062 Thomas Conroy 2017‑03‑25 Re: BRAND NEW Hollow & Round Irons Available from Corradi SpA in Italy
John Ruth pointed to a company making molding plane irons:

http://www.corradishop.com/index.php?main_page=product_info&products_id=53

whose transcribed description includes:

"CORRADI GOLD molding plane irons are .... made using ledeburitic tool steel
which provides a high edge retention and reduced brittleness, thanks to a heat
treatment done according to the highest quality standards reached by Corradi
SpA?s century old manufacturing know-how...."
Does anyone know what ledeburitic tool steel" is? The term isn't in Wikipedia or
Wiktionary.
Tom Conroy
262063 "John M Johnston (jmjhnstn)" <jmjhnstn@m...> 2017‑03‑25 Re: BRAND NEW Hollow & Round Irons Available from Corradi SpA in Italy
https://en.m.wikipedia.org/wiki/Ledeburite

J~

“P.S. If you do not receive this, of course it must have been miscarried;
therefore I beg you to write and let me know.” - Sir Boyle Roche, M.P.
262064 Don Schwartz <dks@t...> 2017‑03‑26 Re: BRAND NEW Hollow & Round Irons Available from Corradi SpA in Italy
On 2017-03-25 5:25 PM, Thomas Conroy via OldTools wrote:
> John Ruth pointed to a company making molding plane irons:
>
> http://www.corradishop.com/index.php?main_page=product_info&products_id=53
>
> whose transcribed description includes:
>
> "CORRADI GOLD molding plane irons are .... made using ledeburitic tool steel
which provides a high edge retention and reduced brittleness, thanks to a heat
treatment done according to the highest quality standards reached by Corradi
SpA?s century old manufacturing know-how...."
> Does anyone know what ledeburitic tool steel" is? The term isn't in Wikipedia
or Wiktionary.
> Tom Conroy
>
http://encyclopedia2.thefreedictionary.com/Ledeburite

Don

-- 
The harder they come, the bigger they fall - Ry Cooder

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