5 Minute Layout Knife!

  • Advertise with us
Project by Jerry posted 04-01-2010 05:14 AM 3719 views 14 times favorited 15 comments Add to Favorites Watch
5 Minute Layout Knife!
5 Minute Layout Knife! No picture No picture No picture No picture No picture
Zoom Pictures

Ever wonder what to do with those “Dull” razor blade knives that you “Break-Off” and throw away? All sorts of handy little scrapers, marking knives, mini-chisels etc. can be made from this great little piece of hardened steel.

Here is an example of what I did with the last piece in the knife.

Next simply mark out the desired shape of your tool with a sharpie, we will do a simple marking or layout knife

Next we will cut this shape out with a little cut-off wheel in a dremel tool

A quick rounding off of the sharp corners on the disc sander give us this! I have tons of these laying around my bench, a quick swipe on your strop with a little compound on it and its back to razor sharp again. I use these “As-Is” many time but a little slit in a dowel, a drop of CA glue and a quick sleeve of electrical heat shrink give a tool with more reach and versatility. Here is how I “Finished This one off”.

You can make little angle chisels, scrapers that work great for glue removal, marking knives, let your imagination and sharpie guide you! Literally less than 5 minutes from start to finish.



-- "The Bureau of Alcohol, Tobacco, Firearms and Explosives should be a Store, Not a Govt. Agency"

15 comments so far

View Broglea's profile


674 posts in 2131 days

#1 posted 04-01-2010 05:32 AM

Looks like a lot more fun than buying one.

View TopamaxSurvivor's profile


16455 posts in 2716 days

#2 posted 04-01-2010 06:23 AM

Great job. I never throw away old blades of any kind ;-)

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View FordMike's profile


155 posts in 2511 days

#3 posted 04-01-2010 07:00 AM

Very creative, there’s something enjoyable about making your own tool and using it.

View Cozmo35's profile


2199 posts in 2076 days

#4 posted 04-01-2010 02:20 PM

Great idea…

-- If you don't work, you don't eat!.....Garland, TX

View NBeener's profile


4808 posts in 2214 days

#5 posted 04-01-2010 03:24 PM



-- -- Neil

View Jason's profile


657 posts in 2548 days

#6 posted 04-01-2010 04:40 PM

Nice idea. Thanks for the tip.

-- Jason - Colorado Springs

View a1Jim's profile


113725 posts in 2617 days

#7 posted 04-01-2010 04:46 PM

Cool Idea

-- Custom furniture

View mafe's profile


10515 posts in 2129 days

#8 posted 04-01-2010 09:17 PM

Good idea, easy and fast, and then it’s easy to replace the blade.
Is it possible to shapen these blades?

-- MAD F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

View PurpLev's profile


8520 posts in 2689 days

#9 posted 04-01-2010 09:27 PM


just one thing to consider – this blade is double beveled leaving the cutting edge centered to the blade thickness, which might be limiting when trying to mark a line against/flush another piece (joinery etc). in which cases, a single bevel edge works better.

still – nice reuse of disposables, I’m always in favor of that.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View Jerry's profile


72 posts in 2193 days

#10 posted 04-02-2010 06:17 AM

Good point PurpLev, when you are at the belt sander its quite easy to simply grind off the factory edge and only bevel one side or the other, I have two like this, one with a RH bevel and the other with a LH bevel for tight spots its nice to have a “Dedicated’ blade to mark with. BTW, since I started using machinist squares and marking knives instead of woodworking squares and pencils the level of accuracy in my work has improved greatly. Takes a little getting used to the “Change” in procedure but once you get the hang of it a pencil line looks huge and sloppy in comparison.

-- "The Bureau of Alcohol, Tobacco, Firearms and Explosives should be a Store, Not a Govt. Agency"

View BTKS's profile


1983 posts in 2504 days

#11 posted 04-03-2010 04:32 AM

Cool, I can use the old blades from a utility knife too. I keep and old plastic container with a slot in the lid to drop the used ones into. Hate to throw them unprotected into any trash container. This is a great idea, thanks for posting. BTKS

-- "Man's ingenuity has outrun his intelligence" (Joseph Wood Krutch)

View bigike's profile


4042 posts in 2329 days

#12 posted 04-03-2010 04:20 PM

cool little marking knife!

-- Ike, Big Daddies Woodshop,

View studie's profile


618 posts in 2187 days

#13 posted 04-04-2010 10:21 AM

That’s very cool to make an improvement for the sake of accuracy! We all should do our best to take the time & steps to make our work better. The big plus is that you have a sweet lil item that no one (until now ) has. I sharpen my utility blades with a diamond hone in less time than replacing it. Thanks for sharing a great idea!

-- $tudie

View Dennisgrosen's profile


10850 posts in 2155 days

#14 posted 04-12-2010 08:31 PM

thank´s for the tip and toturial great work


View Dave's profile


11254 posts in 1880 days

#15 posted 01-10-2011 07:01 AM

It, like a lot of oriental tools has some zen to it. Ill be making one tomorrow.

-- Superdav "No matter where you go - there you are."

Have your say...

You must be signed in to post the comments.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics