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THERE |
Right hand for keeping it from twisting, left hand for pushing. |
(generally, I hold the drill left handed and push with my right, but same idea) |
also need to secure the bike against something. |
If you push on the handle, your almost guarenteed to snap bits because it puts a sideways force on them |
yes i remember not being able to press straight for some reason. |
I always pressed a bit to any side |
Yep. Cause its nearly impossible to press straight from the handle, you gotta do it from the back of the drill. especially with small drill bits |
Spot drill bits are also great for jobs like this: |
Center drills even in a pinch: |
my second extraction kit came with one, but it was china garbage and unusable |
Ya. While 3/16 (more like 1/4")+ drills are reasonably easy to hand sharpen with a diamond sharpener, smaller drills you.. just buy in bulk |
PS: most chinese drill bits arnt half bad steel, but the sharpening job on them varies from usable to "Did they sharpen it backwards?..." |
I thought I was being particularly stupid, apparently they like to break |
(at least, if you buy HSS drill bits.. Don't buy 'carbon alloy' lol) |
While im sure shitty HSS drill bits exist, I believe most of the real shitty drill bit makers go with carbon steel, so the HSS drill makers at least *try* to make a drill. |
if i need to drill something i just search the shed and take what i can find there ^^ |
I have a 119 index, 29 index and uhhh, plastic thingy filled with like 3~10 of every size under 3/8" lol |
Guess what drill bit you get if you ask to borrow one, LOL |
the useless ones^^ |
29 index is for garage precision metalwork, 119 index is for machinist work in the basement, and the plastic thingy is for "I need a hole in this.. thingy" |
they are not useless but if you broke one on the first hole id be like "yea. that happens" |
That's pretty annoying when you only have one |
^^ |
that is why its a literal kit of drill bits lol |
this but in a MUCH shittier container |
I'm afraid I'll have to deal with it again at some point |
$30 lol. |
but theres a lot in that |
yeep |
hence why I said, you snap one, its like, yea, that happens, here have another. |
All of those small drill bits are basically disposable because they snap so often and are too hard to sharpen, and too cheap to be worth sharpening |
there was one of each in my kit and it was 12 bucks |
ya |
the >1/4" drill bits, those start getting pricy AND strong enough not to snap, they are worth sharpening. |
Iv got a set of 1/2" to 1" drill bits. you better bet I sharpen those suckers |
I think I'll buy some in reserve, otherwise I'll end up crying again when I need one |
Yea |
buy the shitty kit of a bunch of every small size. |
but there are so many things to buy |
and a less shitty kit that goes to 1/2" |
Generally the 'bunch of every small size' kits go to 1/4" or 3/8" |
ie, up to the size you stop snapping like twigs üôÇ |
Can use the bits from the shit kit to refill the holes in your nicer kit too |
(After you snap those) |
after lol |
I mean, your not just gonna buy a whole new index just to get another 1 drill bit.. |
until now i did |
but I just bought different kinds every time |
https://www.amazon.com/TICONN-Titanium-Storage-Aluminum-Plastic/dp/B09N6Q7W59 something like this. |
there are definately 'better' drills out there... but they are like, the $80+ for a 21pc kit drills lol. And they snap just about as easily, they just stay sharp and all come sharp. |
Get an assorted kit, some diamond files... |
https://www.amazon.com/EZE-LAP-PAK4-Color-Coded-Diamond/dp/B000UVTDZC these are good for drills/router bits. |
little small for much else but they get the job done nicely on drills. |
yeah okay that's a lot of the little ones, if you have the set you can probably get 1-2 screws away |
Yea, its basically built on the expectation that small bits are worthless to sharpen, cheap to include 10 of and the most likely to snap on you. |
I didn't even know you could sharpen them. |
one of those 3/8" bits prob costs as much as all 10 of those 1/8" bits |
(and will prob drill 10x as many holes!) |
Yes, but i only ever need the small ones |
yep. Just like any other cutting tool. |
Yep, common experience. hence why a lot of those kits stop at 3/8" or even 1/4" |
saves you money on drill bits your not using anyway (or have from another kit) |
diamond laps are best for sharpening drills IMO, especially since HSS is pretty hard. |
don't get this type (with holes) for drill bits.. doesn't work for shit. |
Need a solid lap, prob something like a 200 and 400 grit. |
but I don't think I'll buy a file like that but these extraction drills |
then its just a matter of dressing up its edges |
I have half a workshop that I have to buy |
There has to be a ever so slight 'relief' on the cutting edge, so that basically the front flat edge of the drill can dig in |
don't they all have it? |
Yes, but when you sharpen em its important to remember that lol |
else you might get a sharp edge that doesn't drill anything |
i will not remember that |
lol. |
iam pretty sure : D |
Basically what I do is just fuck around with the drill bit and my diamond lap, doing the best job I can, try it out, then sharpen some more until it starts drilling properly again üòõ |
basically, that little line on the right has to be 'higher' then the metal just behind it |
I'll probably try to sharpen it when I break off 3 more drill bits on the next screw |
better pic that shows it |
that little a angle on the right |
so the cutting edge can actually dig into the work |
(this is like looking at the side of the drill) |
I still don't know if I'm getting this right when i will do that |
yea.. Well, when you get a dull drill bit, you'll have nothing to lose so üòõ |
Just find some scrap to pratice drilling on when you try to sharpen it to see if your making it better or worse lol |
one of my grandfather's favorite hobbies is sharpening drills, he can sit around for hours and sharpen all his drills |
Nice, get him to teach ya then |
he has an automatic drill sharpening machine, no idea if its shit |
I'm honestly not sure if he's doing it right after you shoed it |
thanks for the patience ^^ |
Ahhh. |
Yea, it depends on the machine |
some of em are pretty shit, some are pretty good. |
its something a machine should be able to do REALLY well, if the machine is made accurately and isn't worn out |
Naturally, this is why chinese drill bits vary from "Hey this works pretty well" to "Is my drill turning the right way?" |
ha, that's what I noticed, especially this "does it rotate at all"? |
Didn't know bit sharpening was a thing, might look into it myself |
The other day I was drilling a hole for an adapter into steel and one hole took like 20 min with my crappy hand drill, I found a hidden bit in the back of the drawer and it pierced in like 1 min |
Widening is always easy, it's the bits needed to pierce that always go dull for me |
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