in the vid he puts the edge on the straight side as opposed to the curve.. does anyone know if their is a reason for this? or is it prefence.
I like that. Is it necessary to quench it so many times though?
Nope. Some people have it in their heads that triple quench is the way its done for better performance. Its a load of rubbish, the steel benefits from as little heat applied as possible, get it to hardening temp, quench, temper it... done. By doing it 3 times, you are just resetting it each time from the last time you did it.
Standard engineers 'jobber' drills are made of 2 steels and welded together on manufacture. HSS only makes up the drilling part and a softer steel makes up the shank.Nice craftsmanship, but i'm imagining it's hss, and that blade is very very thin. I give it about 2 weeks before its snapped!
Although that is true, he did it 3 times more than likely to ensure the oil gets into the pores of the steel to blacken it as well as to harden it.
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Good idea. Nice wee knife... Here's some of my grinder work from Yesterday.
Standard engineers 'jobber' drills are made of 2 steels and welded together on manufacture. HSS only makes up the drilling part and a softer steel makes up the shank.
Was making a Hobo stove and i needed to grind off some rough pieces of steel. Plugged in the grinder, switched on the wall socket. The switch on the grinder was on the on position and the kick off the grinder kinda spun it from my hand. I think?...Anyway, it bounced off the ground and back into my shin then tangled around the bottom of my jeans. Could have been worse as i was only wearing slippers at the time. December was a bad Month for me. two accidents and both could and should have been avoided. lets hope that's the last for a few years.How on earth you manage that?
Was making a Hobo stove and i needed to grind off some rough pieces of steel. Plugged in the grinder, switched on the wall socket. The switch on the grinder was on the on position and the kick off the grinder kinda spun it from my hand. I think?...Anyway, it bounced off the ground and back into my shin then tangled around the bottom of my jeans. Could have been worse as i was only wearing slippers at the time. December was a bad Month for me. two accidents and both could and should have been avoided. lets hope that's the last for a few years.
It's a old type grinder, not one with a push trigger to start it, just a simple on off switch at the rear. been a good few years since i used it so really wasn't expecting the "Kick"...I basically crapped it when it switched on and proceeded to drop it like a hot spud.