machine for sharpening drill bits in lidl

f140

just by chance started browsing the lidl magazine that came with the sunday paper and read that they have a machine tomorrow in it for sharpening drill bits. this is actually something i dont know how to do and was wondering was it worth a shot. have a drawer full of usless blunt bits. Normally just buy the cheap crap that the local coop sell so am wondering would this machine be any good for sharpening them. Dont have any link sadly.

blue5000

http://www.lidl.ie/cps/rde/xchg/lidl_ri_ie/hs.xsl/index_30630.htm

stuck in a link for you, 30 yoyo, not bad value, but only does bits up to 10mm

Muckit

Thanks for posting link. You can't beat the quality of Lidl's stuff for the money. German quality engineering at super prices. Great value for farmer/DIYer.

Their drill bits in the blue metal box are smashing too for what you pay for them and better than Aldi. And now I can sharpen them too..... yippee!!

pakalasa

You can sharpen drill bits on a grinding wheel, but you have to get the angle right. The lead or cutting edge has to be kept as a leading edge and the roundness of the tip constant. Not an easy thing to do. I work with a guy that can do them. He can do them as good as new in a few minutes.

Timmaay

Sharping alot of those coated bits can be abit of a waste of time, much better idea is to go very easy while drilling steel, and avoid work hardening the steel. Use lots of pilot holes also, 3mm, 5mm, 7mm then 10 if you want a 10mm hole. I can usually make a box of those lidi coated bits last a yr, biggest problem I have is they snap too easy!

pakalasa

This cutting compound is the job for drilling. I've drilled 20mm holes in 15mm plate with this stuff. Magnetic drill of course and you need to have the speeds right.

Muckit

pakalasa wrote: »

This cutting compound is the job for drilling. I've drilled 20mm holes in 15mm plate with this stuff. Magnetic drill of course and you need to have the speeds right.

Is it easy enough for a lad to get his hands on the stuff Pak? Would this do leave a film on the grinding wheel then or is it OK? I use a squirt of WD, not sure if it helps or not.

Is it easy magnetize ordinary drill bits or do you have to buy them magnetized.... I don't want to be like the lad goin for a bucket of steam or lookin' for sky hooks?

pakalasa

No, the Trefolex is a green paste that you dip the drill bit in , as you are drilling. It helps with the cutting process. Most good hardware stores should have some.
The 'magetic drill' is a drilling machine. You plug it into the mains and it has a magnetic base that holds it in place. You just pull down on a lever then. Like in the pic. You can even drill upside down with one. I borrow it from work.:rolleyes:

Muckit

So will this yoke stick onto any machine or girder or whatever and allow you to drill down straight? That's sounds the business, never even knew such a thing existed. Sounds very handy, better than a pillar drill

pakalasa

Muckit wrote: »

So will this yoke stick onto any machine or girder or whatever and allow you to drill down straight?

It sure will. It will grip onto anything steel. Really takes the donkey work out of drilling.
It's not great for high precision work though. There's a track on it that the drill slides up and down and it tends to pull the drill to one side a little. Grand for most stuff.


Radionics have Cutting Compund too, but different make.
http://radionics.rs-online.com/web/p/cutting-fluids/0691347/

Timmaay

And them magnetic drills can fail, ie loose the magnetism if you abuse them, with funfun consequences, plenty of youtube videos around!

oldsmokey

Theres a few of drill-sharpening too!!And a good one from a guy called Footsfitter who's a terrific contributor to our buds in British Farming Forum.