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PRO

Sharpening hedgecutter

I sharpened my hedge cutter with a hand file last winter and it took forever to do every tooth as it's double sided and a long blade. I'd like some sort of gadget to speed this up as I have 3 hedgecutters to do this winter. Looked at a couple of old posts on here and a dremel with flexible shafts would best seem to fit my requirements but I'd like a link to the correct type to buy as when googling there are so many options for dremel.Can anyone link me to the correct thing? As cheap as possible please :-D

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  • Hi
    I would go with a Dremel type tool. I purchased an Aldi version with a flexible shaft which was great until the flexible shaft packed in. Then realised it was just as easy to work without the flexible shaft.
    So IMO don't bust a gut trying to get a tool with all the fittings, just the motorised unit and you will be fine. The little grinding wheels don't last long so you will need some of them at the ready.
    • PRO
      Can you link me to the right tool and grinding wheel?
      • PRO
        Hi I'd use a grinder like others have said and use light stokes so it doesn't blue the blade or better still a rotary polisher with variable speed as it will only spin 6000 ish rpm, personally I'd always remove the blades then you can inspect the spacers and crucially use a diamond stone or at a push a belt sander with variable speed buy quality belts as they break less something like a 120 grit paper you'll be amazed at the lack of blade chatter you'll eliminate very noticeable smoother running, thoroughly clean before assembly:)
        • Sod removing the blades, that's a faff just to sharpen it. If you want to check the spacers haven't cracked just slacken the nut and pry the blades apart. Are you talking about polishing the spacers? Unless anyone doing it has a pair of verniers and knows how to use them they're likely to do more harm than good.

          Variable speed is unnecessary and counter productive in this application. These blades are a bog standard tool steel. You're not going to exceed the SFM for grinding this with a B&Q grinder and disc. If you slow it down, all that's likely to happen is the operator wobbles whilst waiting for the cut to complete and ends up rounding off.

          You might be on to something with the belt grinder (I presume you mean file belt grinder), if you can fit it between the teeth. What might also work is a fibre sanding disc without the backing pad.

          All that said....a staff member can make a decent job in under an hour with a new fresh file. :D

          • PRO
            Lol polishing the spacers no I wasn't :) only to side the two blades meet makes them sound like a new pair. Running the polisher at 6k is slow enough and I've found gives a better Edge, with the belt sander wide enough to cover the whole blade width (obviously removed, split and secured)
            • Ah, I get you. Not sure I'd bother but each to their own. It would be a good way of removing any burrs  from sharpening.

              • PRO
                It is a faff for every time but you will know when it needs doing makes a big difference but then I'm the only one using my equipment at the moment and hate blunt tools if it's not shave sharp it's not sharp :)
  • I've always used an angle grinder...... about 5 "strokes" on each cutting edge does the trick and the double-sides cutter takes about 15 minutes. I was given a Dremel a few months ago.................. tried it on the hedgecutter blades but found it rather tricky to use.... the "wheel" didn't seem to be at the ideal angle and not nearly as quick and simple as the anglegrinder. Don't let other people frighten you about using a grinder!!.....it really is very easy to do and there's no need to separate the blades....... just don't do too many "strokes" at a time as you don't want to heat the blade up.  I clamp the hedgecutter in a vertical position in the jaws of my old "workmate". Obviously, you have to start the cutter up to get the blades in the right position. position. I use the narrow cutting disc rather than the wider grinding disc.......... it's easier to use.

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    • PRO

      Don't need to wait for it to turn brown, if it isn't cutting cleanly it isn't sharp, easy to inspect the the cut hedge and seee.

    • PRO
      I think I'd agree with that once you sharpen them you need to keep doing it certainly on the newer ones
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