SNNC 296 P1 Tool Cutter Grinder Sharpening Drills

[@bostedtap8399]

Powered or granulated Citric Acid can be bought very cheaply, citric acid only reacts with the rust, doesn't react with the steel like vinegar (Acetic Acid). Not sure if the salt is needed though, they came out great. I use a scouring pad to clean the residue off. Great vlog John, and thanks for sharing.

[@eliduttman315]

In addition to citric acid, lemon juice contains ascorbic acid (Vitamin C). Ascorbic acid is a reducing agent. Rust is primarily hydrated ferric oxide. Ferric gets reduced to ferrous, a good thing. "Straight" citric acid may well be adequate, but lemon juice has a double action.

[@bostedtap8399]

@@eliduttman315 I never knew about the Absorbic acid, the residue from citric acid reaction to rust is a pain to deal with, is it Ferrous Magnetite or similar?. I will definitely try some lemon juice, or maybe purchase Absorbic acid to try with my several kilogrammes of citricc acid. Very interesting, thanks for sharing.

[@gmcallsuk]

It's maybe also worth mentioning that as you sharpen the drill check it is being sharpened evenly by measuring the lip length or length of cutting edge. you need to use equal passes on both sides once you form the even length cutting lips If not the drill will drill a hole double the length of the longest lip. I also remember being shown this as an apprentice nearly 40 years ago now.

[@rwiliamson8051]

Very nice drill sharpener John... I was hoping to see you try & use the blue one.

[@samrodian919]

John, I have always found it pays to reduce the chisel point first because it is easy to accidentally grind off the cutting edge when you are looking at the other side, so if you do it first then before you sharpen the primary cutting edge it doesn't matter. Nice quality drill that. On the rust removal, i use high strength vinegar (20%, household is usually 5%) and it works a treat with the salt added. I put my rusted stuff in a sealed tub, weeks at a time and when taken out and brushed there is not a scrap of rust at all. I had a wing type pair of wrought iron dividers that were my dad's,and they were very badly rusted, two weeks in the vinegar salt solution and they came bout as if the blacksmith made them yesterday.

[@larryjacobs8956]

Hi John, thanks for another great video. You can also use white vinegar to get rid of rust. It can also be used to sharpen old files.

[@Davidthomasv8]

Brilliant machine that for sharpening john u made it look easy.

[@RickRose]

Great results with the sharpening jig--Glad you got it going. Thanks for sharing.

[@kentuckytrapper780]

I use vinegar, leave overnight wash off with dish soap, wd40 like new. Great video, great info.

[@jimsvideos7201]

Lovely bit of work on the drill bit John.

[@MaturePatriot]

Finally, I've been waiting all day.

[@bcbloc02]

It appears your bit walks to the side when you start the cut each time. Guessing that one side needs a bit more off to get it going straight. Hate to drill crooked and oversized bores.15:15 watch it in 2x speed and its easy to see.

[@andywilliams1160]

My ex wife could always tell when I'd used her toothbrush for cleaning piston ring groves - I made sure it was clean looking when I put it back - must have been the taste I guess.

[@vincei4252]

lol

[@TheDefeatest]

Lemon juice on Pancakes?

[@retromechanicalengineer]

Nice cutter grinder John. Did you mic up the bore to see if the drill was on size? Great video as usual. Dean in Oxfordshire.

[@raymondsteele4142]

John hi, you can also use phosphoric acid .

[@bostedtap8399]

Phosphoric acid leaves behind a tough layer difficult to remove on precision components, great for those that are cosmetic etc.

[@chrisyboy666]

Very 1st thing I learned to do @ parsons 1st day of my apprenticeship in 1987 by hand

[@MaturePatriot]

Was that a Military Surplus can with the cutting oil? Good grind on that drill bit!

[@CharlieParker1959]

Or what you have used her tooth brush for

[@nikond90ful1]

Thanks for the video John.

[@wally379]

That was almost sexual that drill going into that bit of stainless 🤣

[@alanbrown1563]

citric acid is the best John for de rusting

[@gbowne1]

those are simple DA collets, much like the DA180 collets.

[@wibblywobblyidiotvision]

Electrolysis for them collets, man.

[@samrodian919]

Michel Auron or horticultural strength vinegar (20%) with salt work wonders and if you use electrolysis it does it in a couple of hours.

[@vincei4252]

RIP Stig. Sucks to lose a pet.

[@scottgibson7534]

To get rid of badly rusteditems use vinniger at least 5% cover the item then 12 hours in agitate them 12 hours later wash and oil.

[@rhewitt9060]

If you are using the wife’s toothbrush you definitely need to wait until she is out!!

[@johnreese3943]

+1 on Erickson DA collets.

[@jamiebuckley1769]

put the collets in evaporust like all the other machinists do like kieth rucker.

[@bostedtap8399]

Not easily available in Europe.

[@ericmcrae7758]

Evaporust is available on ebay but its quite expensive. The good thing about it is it is not harmful to your skin and can be reused over and over. I have some just leave the part soaking for a few hours and rinse with water works a treat.

[@bostedtap8399]

@@ericmcrae7758 I have just looked, and wasn't aware it is now available widely in the UK, found this potential supplier. Thanks. www.thompsonsltd.co.uk/products/qevp1lfba-evapo-rust-super-safe-water-soluble-rust-remover-1l-us-quart-metal-treatment.html?gclid=Cj0KCQjwz8bsBRC6ARIsAEyNnvpRtwrKoC0jixC3vvDdJ67ZieCO1l1mgEKoyhFfCa1ozoCvzTZ-MQkaAsW7EALw_wcB

[@GaryRowlands]

You should always use the wife's toothbrush for jobs like that John.

[@janvanruth3485]

you better heat up the collets in an oven for a while to take the hydrogen out, else they will break

[@wibblywobblyidiotvision]

Ever actually seen that happen? I know I haven't.

[@janvanruth3485]

@@wibblywobblyidiotvision i have had the fairly hefty springs of tools break witout any effort or warning immediately after they were derusted in citric acid. it also took out the titanic......

[@bcbloc02]

@@janvanruth3485 Somebody citric acid washed the Titanic?

[@janvanruth3485]

@@bcbloc02 you didn't know?

[@juanantonioruiz8130]

great machine for sharpening drill bits🇪🇸