LN Honing Guide & Ray Iles mortise chisel compatibility

[Peter Schussheim]

Apologies if this has been asked previously, does the Lie-Nielsen honing guide and any of its jaws accommodate Ray Iles mortise chisels? Thank you in advance.

[Rafael Herrera]

Unlikely, free hand sharpening would be quite appropriate.

[Scott Winners]

The mortise chisel jaw set I own for my L-N guide is for square sided mortise chisels - like the L-N mortise chisels. If your mortise chisel has a vaguely trapezoidal cross section, the jaw set I own will only grip the chisel on the widest line, the widest width.

I only have the one data point.

[Assaf Oppenheimer]

I just checked (I have both).

no they will not.
the chisels taper towards the point and they taper as a trapezoid. this means that there is only one point of contact on each side of the guide. I can easily move the chisel in it.

try the veritas guide with the mortise chisel setting, its what I use

[William Fretwell]

I was taught to sharpen pig stickers with a curve on the top face. The only way to do that is by hand!

[Assaf Oppenheimer]

I like to add the curve after freehand but the edge is guide sharpened. Either way that wasn't the OP's question

[Derek Cohen]

The block of wood is the template to guide you to know when the edge is 35 degrees ...

https://i.postimg.cc/QMMbfyw5/813b297c-6daf-4708-baad-279e19ce4d58-zpshjiiywbe.jpg

This is the time I use the round bevel method espoused by Paul Sellers ...

https://i.postimg.cc/rpY9392H/Honingmorticechisel1-zpsad015f6a.jpg

https://i.postimg.cc/ZRBLSyT5/mortice-guide2-zpsmrald6b3.jpg

My Japanese mortice chisels receive a flat 35 degree bevel, again honed by hand.

https://i.postimg.cc/ncNrsg2d/Fujikawa1.jpg
Regards from Perth

Derek

[Peter Schussheim]

Thank you very much for the responses.

regarding the "curve" or "round" bevel, I assume this is the same as a "convex" bevel? I use convex bevels on my knives as I understand it to provide the cutting edge with a bit more material to strengthen the edge.

Derek, thanks for those images and the idea to make a wooden block for the target sharpening angle, I like that!

[Assaf Oppenheimer]

No, in this case I believe that Derek and others mean rounding off the non cutting "top" of the primary bevel to make it easier to use for leveraging waste (marked with a red arrow in the picture)
476742

that rounding does not require a guide and while precision is always important in general, it is less important on the curve that the cutting edge.

[Derek Cohen]

Assaf, the rounding does refer to the secondary bevel.

Here again ...

https://i.postimg.cc/ZRBLSyT5/mortice-guide2-zpsmrald6b3.jpg

Regards from Perth

Derek

[Assaf Oppenheimer]

I stand corrected

[James Pallas]

I’m not actually sure of this but I believe the rounded bevel tends to break the chip off a little better. This helps in not getting the chisel wedged in with a flat bevel.
Jim

[Assaf Oppenheimer]

I'm feeling pretty silly about this now, and I don't want to hijack the OP's post but why should I round the secondary bevel on mortising chisels? easier entry?

[Rafael Herrera]

When you sharpen, a steeper angle generally result in a less chippy edge, but at the cost of higher resistance when cutting. The rounding of the secondary bevel let's you have a shallow primary and a steeper angle right at the edge. The rounding is the result of doing it free hand. If using a honing guide you get more like facets, but it's not necessarily better, you just need to fiddle with the guide.

[Assaf Oppenheimer]

not sure I understand you.

I sharpen mine primary 20° with a secondary of 35°. I use a honing guide and have a facet between the primary and the secondary bevels. what does rounding the facet to to improve the chisel?

[Derek Cohen]

Hi Assaf

I do not see an advantage with a rounded bevel. The rounded bevel is simply a product of the sharpening method. More importantly, the leading edge of the secondary bevel is 35 degrees.

This method is easier, in my opinion, when freehanding a secondary bevel on a mortice chisel with a deep blade and a 20 degree primary bevel. My Japanese mortice chisels have shallower blades and there is no secondary bevel, just the polished primary bevel. Note that I am freehand sharpening. If I used a honing guide, it would make sense to add a secondary bevel.

Regards from Perth

Derek

[Rafael Herrera]

What Derek said.

[Assaf Oppenheimer]

OK I got it.

Thank you, Ill stop hijackings the post now :p

[William Fretwell]

My experience exactly! Drives in deeper.