How to Sharpen Fein Multi Master blades

J

jmbfestool

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I didnt know which topic to post this in cus der r a few very similar topics about Fein and Fein blades but I didnt want to start a new one up!  So I picked this one Alans

Any way I am fed up with blunting my Fein blades very quickly when I hit a wall which is just behind the wood.  They are not cheap and I have been throwing them away when they become so bad all it does is create smoke!  I keep a couple for cutting plasterboard plaster but eventually the blade gets a large hallow and I use another old one!  IT costs me £100 every time cus I buy a pack of 10

Well I decided to look around and found a video of some one sharpening using a file but that takes AGES and you need teeth in the first place to sharpen and most of mine end up tooth less.   The ones I have shown have small teeth still so could be sharpened using a file but like I said im to lazy to do that!  

Well I was sharpening my Chainsaw chain to day with my Dremel and decided to try something with the Fein blades while I was messing about!

Well here are the results

You can see I just use my dremel and create a few hollow cuts which then create a few large points well I tried cutting wood with it and it WORKS!  [big grin]  It takes less than 1 minute per blade and im using a power tool to do it so ill be doing it more often
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Just Uploading Video Now!
 
Here is the Video!  

It aint great its a little hard to try and use the Fein AND Film at the same time!

I also filmed my Green T-loc (first aid box) my girlfriend got me and also filled it with a few things to get me started lol

Oh and my little big ladder I got the other week when reading a few reviews here on Fog not really used it yet had a play though trying it out!

Fein blade sharpening

JMB
 
Last time i saw somebody doing this they were using a dremel with a small cut off disc. This way they cut similar angles to what was on the blade originally. What materials does your modified blade chew through?
 
waho6o9 said:
thanks JMB, I shall sharpen some fein blades. Yeppers   [smile]
Click to expand...

No problem!   It actually cuts wood quicker!   I find you have to move the fein sides ways a little more you can just keep it still!  Which you shouldnt be doing any way even with a normal new blade cus of heat build up!    

Another good thing about this once you have shaped the balde like I did in the video and as long as you dont wear out the tips to much you can quickly resharpen the blade again and again so takes even less time to sharpen them.    

I cant believe I never thought of it before I have thrown LOADS of blades away [crying]!  

Just cus I was sharpening my Chain saw blade and I had a fein blade next to me at the time I thought how easy would it to cut!  Simples!

JMB

 
duburban said:
Last time i saw somebody doing this they were using a dremel with a small cut off disc. This way they cut similar angles to what was on the blade originally. What materials does your modified blade chew through?
Click to expand...

I have tried it on just pine softwood and plywood with great results!    I dont know how well it works on something hard like OAK!   Ill go out and check in 2 mins might do a video I got some oak flooring laying about some where. 

EDITED:

It wont cut metal but I take it that as being obvious.

JMB
 
Well made a quick little video got some to hold the camera which helps a lot to control the fein better!

I used my worst sharpened/reshaped blade (my first attempt at reshaping and sharpening)  As you can see in the video its not very equal my other two are more se-metrical or similar proportion cut outs!  I can only believe this would improve the cutting so if this blade cuts fine the other two should cut the same or better.

Cut through some softwood first which is what I cut through most on site with my fein!

Then some shuttering ply

Then some  solid Oak flooring!  Which even fein normal bi-metal blades struggle with.  It cuts it fine!  When it comes to plunging it struggles and creates smoke!  I didnt show it in the video.

OOPS Forgot to add the video link silly me  [embarassed]

Testing Blade

 
sweet job jmb. the cost of new blades is one of the main reasons i try not to use it. you can ruin a blade in a second if you hit the wrong thing. il have to get a dremel to do this. it cuts a lot faster than the normal blade.
 
Alan m said:
sweet job jmb. the cost of new blades is one of the main reasons i try not to use it. you can ruin a blade in a second if you hit the wrong thing. il have to get a dremel to do this. it cuts a lot faster than the normal blade.
Click to expand...

Yea its really annoying when that happens instant blunt blade.     

I dont know how well these modified blades will hold up against something hard like a wall but it dont matter easily sharpened up again now its been shaped!  Also I dont know how long they stay sharp if you was just cutting softwood or plywood  I only found out to day so I have not had time to see how long they last but ill soon find out.   

Im hoping they will last at least as long as a normal new blade  and even better if they last longer.

JMB
 
id be woried about loosing the temper as you work your way down  the blade, althow you could heat it and quinch it. id try it with a smaller diameter grinder or a disk
 
I agree, Alan. That's why it's common to have water by a bench grinder... for that quick quench.

It's not totally scientific but that's what I learned to do.

Tom
 
Alan m said:
id be woried about loosing the temper as you work your way down  the blade, althow you could heat it and quinch it. id try it with a smaller diameter grinder or a disk
Click to expand...

You cant keep working your way down cus you start to loose your oscillation swing as you get close to the centre point the less swing your blade has and so slower cutting ability.  

I think if I have a smaller wheel for my Dremel I can put shallower grooves in it and so removing less blade so can sharpening it more often! Down side this will take a little longer not a lot  so would still be fine!  

You see if it takes to long I wont do it! It has to be quick or ill become to lazy and think its not cost affective cus I gotta remember my time costs so ill just go out and buy new blades! This takes no more than a minute per blade so to me thats cost affective unless im on more than £10-12 a minute lol but once you shaped it its even quicker its like a chisel just give it a quick once over!

 This method I use is quick and easy and from a few cuts I have done  works well so ill properly stick with the diameter cutting wheel I got!  I might try a smaller one as I believe this will only improve the cutting.

JMB

 
Good idea JMB , I've got tons of old blades . I have seen a gadget somewhere on the net that crimps new teeth on the the ends but it was expensive.
 
joiner1970 said:
Good idea JMB , I've got tons of old blades . I have seen a gadget somewhere on the net that crimps new teeth on the the ends but it was expensive.
Click to expand...

Yeah I have seen it to and thought it was WAY to much but then thought what if I bought it and then charged the lads I work with £2 or £3 per blade im sure they would give me their blades to have them recut for them.    I introduced the Fein Multimaster to 7people showed them what it could do ... so thats £14-£21 if each just gave 1 blade.

BUT then how much is it to have a new blade for this device or how easy it is to sharpen. 

I then thought cant be arsed with the hassle at the time and then forgot about it  lol

 
Just picked up a bag of assorted Fein accs from Axminster in one of their sale bins which made me look at this thread. There was a company in Belgium that specialised in flooring supplies and was offering a sort of cutter that would stamp out new teeth on the end of a fein blade. I have 20 or so old blades I've been saving but can't find the site anymore.
Anyone any ideas?

(I tried the Rutlands japanese blades on my bosch cordless - not bad)
Regards
Richard
 
I have had good luck with the bimetal blades from "Kent" and "Specalty diamond". Both found on Ebay,  look for the no reserve auctions on the bi metal packs and use a sniping service set to a "low' price,  works great.
 
richard.selwyn said:
Just picked up a bag of assorted Fein accs from Axminster in one of their sale bins which made me look at this thread. There was a company in Belgium that specialised in flooring supplies and was offering a sort of cutter that would stamp out new teeth on the end of a fein blade. I have 20 or so old blades I've been saving but can't find the site anymore.
Anyone any ideas?

(I tried the Rutlands japanese blades on my bosch cordless - not bad)
Regards
Richard
Click to expand...

Im trying to look for it cant find it any more!  I saw its AGES ago I think couple years ago.    Its like a guillotine with a blade which would cut down onto the Fein blades recutting it like it was new again in one cut.  Very expensive!
 
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