Rasps

[Jim Koepke]

Hi David,

Usually the 15 can leave a smooth surface that doesn't need sanding. I want to say it is about like a 220 sandpaper or better. With skewing and a little finesse the surface can come close to what a blade leaves.

My best guess is the shear files are like a float.

These can all start to chatter in odd situations. The wood will usually cooperate if the angle of attack is varied.

My shop made saw handles and some plane handles have been smoothed with my 13 & 15 Auriou rasps. Usually without sanding afterwards.

Likewise some of my chisel handles and one mallet has been worked on with these rasps.

jtk

[lowell holmes]

Jim, I will see about making a picture. On clear white pine, the rasp will leave a surface between 100 and 80 grit sand paper.

[David Eisenhauer]

Thanks to Lowell and Jim for clearing up some questions I have had on an upcoming purchase.

[Frederick Skelly]

There really isn't a comparison.

Here is a representation of the Auriou grain sizes:

Attachment 360987

Nicholson rasps are like driving a hard bumpy road with bad suspension where Auriou are like floating on a pond.

The finer Auriou ~13 to 15 grain can leave a smooth surface.

Here is a link that may shed more light on the subject:

https://www.toolsforworkingwood.com/...20Basic%20Work.

jtk

Jim, Lowell,
Thanks for all the information and pictures. This has helped me. Comparing my LV rasp against Jim's pictures, I'd call it about a 4 1/2 grain.

Might forgo the dust collector today and order a couple rasps instead.

Appreciate it!
Fred