Cool blade design. Really like the copper collar

@Barrysworkshop

8 жыл бұрын

+Black Widow Woodworks Thanks!. The copper ferrule has the added benefit of being cheap!.

Thanks for sharing this, it was this video that inspired me to make my own marking knife also using a blunt spade bit, they work so well for these.

Hi Barry great job on your marking knife good idea from a spade bit great video. Thanks for sharing. Pete

@Barrysworkshop

8 жыл бұрын

+Peter Mitchell Thank you, Pete! I really appreciate the kind words.

I like it! Simple but effective. Thanks for sharing..

@Barrysworkshop

8 жыл бұрын

+Don Fillenworth Thanks for watching and commenting, Don!

This is a good way to NOT just throw things away.

Nice, I’m gonna make one too. I might cut down the length of the bit a little.

Nice work

@Barrysworkshop

8 жыл бұрын

+dinktiny Thanks for the kind words!

Simply great !! The best video I've seen to make a marking knife. Although I do not have a lathe, I will see how I manage to do the... the grip? Sorry, I don’t know how say in english 🤦🏼‍♂️. Best regards form Mexico!!

@Barrysworkshop

6 жыл бұрын

Thank you very much. Before I got a lathe, I used a drill press to turn handles for some tools. It is not as easy as a real lathe, but it worked OK.

@carlosmayer4002

6 жыл бұрын

Barry's Workshop Do you have any video using the drill press to make the handles?

Well done , one question please can I cut the spade drill bit with a hacksaw ? Keep up the good work .

@Barrysworkshop

7 жыл бұрын

Thanks for the comment. It depends on the type of steel in the drill bit, but probably not. Most drill bits are hardened steel, about the same hardness as the hacksaw blade, or very close. You'd probably cut a little, but dull the hacksaw blade very quickly. If you can find a "carbide grit" hacksaw blade, that might work for hardened steel. I go to grinding methods for hardened steel for this reason.

@jromhek2070

7 жыл бұрын

Thanks for replying and for the info .

Any idea what alloy that bit is? after that angle grinder treatment it might have lost its temper, might be able to make a longer wearing edge with a simple blow torch + water (or oil) quench once you have the cutting edge close to where you want it.

@Barrysworkshop

6 жыл бұрын

You raise an excellent point. I don't know the exact alloy, but I'm sure that grinding it didn't help the hardness any. If I were to do this again, I'd use an oil quench after getting the basic shape, then temper in an oven. That would lead to a better edge. As it turns out, this still works well for marking, in spite of my efforts. :) It did take some damage when I dropped it on the concrete floor, but I was able to fix it with some wet stones. Thanks for your thoughtful comment!

@fakiirification

6 жыл бұрын

you can use cut off scraps of the bit to test for the type of steel. anneal a piece to where a file cuts easily, then heat and oil quench, see if the file can still cut it or if it skates across. if it still cuts. anneal the piece again, and then heat and water quench it. repeat file test. most tool steels are either water or oil. High speed steel is another matter, but I don't know if ive seen any HSS paddle bits, usually not necessary for wood. Cheers, your video gave me the idea, now im working on my own spade bit marking knife... once i can find a day off work to actually move past the sketch stage =)