LumberJocks

Shopmade Luthier Tools #4: Knife

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Blog entry by Dave Rutan posted 01-03-2017 09:51 PM 905 reads 0 times favorited 2 comments Add to Favorites Watch
« Part 3: Tiny chisel/scraper Part 4 of Shopmade Luthier Tools series Part 5: Tiny knife/scraper »

The luthier’s knife looks very much to me like a common carpenter’s striking or marking knife. Be that as it may, I don’t have either, so I made one.

I started with an old, dull 3/4 inch spade bit. I marked a 45 degree angle on it and grouned it down with my bench grinder, keeping it cool with frequent water dippings. I then used my belt grinder to put a bevel on one side of the blade. I honed it to sharpness on a whetstone. It’s not scary sharp, but it’s sharp.

For the handle I took a scrap piece of walnut and cut it to rough size. I drilled a hole in one end to fit the shank of the bit into. fitted a copper ferrule around the hole and forced the bit shank into the hole. Some sanding and shaping followed. I finished it with boiled linseed oil. I think it looks pretty cool too.

Check out the other luthier tools I’ve made here:[link]

-- Ni faru ion el ligno!



2 comments so far

View Tim Dahn's profile

Tim Dahn

1567 posts in 3687 days


#1 posted 01-04-2017 01:02 AM

Great idea, I bet we all have a couple broken bits laying around to do this.

-- Good judgement comes from experience and experience comes from poor judgement.

View Dave Rutan's profile

Dave Rutan

1732 posts in 2310 days


#2 posted 01-04-2017 02:00 AM



Great idea, I bet we all have a couple broken bits laying around to do this.

- Tim Dahn

I know that mine was sitting in a can waiting for me to ‘someday’ try sharpening it.

-- Ni faru ion el ligno!

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