For the people that own them what tehniques do you use with your sharpener as it doesn't seem to be effecting my knife

Don't use this sharper like a Chef's Steel! It's too short for that. You'll have your fingers off! Take the sharpener in your dominant hand and hold the knife in your other hand, EDGE AWAY from you. Holding the handle of the sharpener behind the blade (handle between your body and the back of the knife) move the sharpener left and right across the edge in easy even sweeps. Don't saw on the knife. Shallow angle for sushi, steep angle for wood, or something between. It should feel like shading in with a pencil, maybe a little scratchy at first until you have established a good bezel. Do one side for a bit then flip your hand over and do the same until you have an even bright band of sharpened edge bezel. You know when you're getting a good apex because as you do one side the burr rolls over on to the other evenly. At first you can use a fair bit of pressure to establish the apex but as the edge gets finer reduce pressure to work out scratches until the sharpener feels like its floating on air. If you're not getting a good edge you either aren't apexed or you're using too much pressure. Patience. Keep flipping sides until the burr disappears. You can reduce the burr by periodically cutting in to a roll of paper. If too much residue clags the sharpener scrub it off on paper or cardboard. Test the blade edge on a single sheet of paper to find the spots that need finishing. It'll snag and leave a tuft on any burrs or dog-teeth. The finer the edge the thinner the paper it will slice. When the blade goes cleanly and smoothly all the way from from base to tip you're done. For razer steel you can then strop on a leather belt. Stainless and harder steels can be stropped using a polishing compound too, such as Autosol or Jeweller's Rouge. Doing a Pen Knife takes a couple of minutes. Restoring a knackered hunting knife can take hours, but you can do it in dribs and drabs without having to mess about soaking stones and closing up all the time.

Can it be used to sharpen small victorinox knives e.g. the swiss card knife or the classic sd knife?

Yes. It is perfect for a pocket pen knife and much easier to use than a full sized whet stone.

Can this sharpener be used on serrated blades? Cheers.

To sharpen serrated blades a Lansky Sharpener Ps-Med01 'Blade Medic' would be excellent as it has a pointed diamond file and also, a splendid ceramic semi-pointed bar. It's very good for the price and you can buy it on Amazon here for £12.69, saving over £8. I have one in addition to this splendid dual knife sharpener by Victorinox. (Actually, it's produced in Germany, but very high quality). I wouldn't be without it. :)

Is this light enough to carry in a rucksack?How much does it weigh?

The sharpener weighs 30grams (just over 1oz) and measures 143mm long, 17mm wide and 5mm thick (excluding the pocket clip). The fact that it has a pocket clip is a clue to how small and light this is. It would not cause any problems in a rucksack.

Color	Black
Size	230 mm
Style	Ceramic Sharpener
Weight	18 g
Material type	Wood
Number of items	1
Number of pieces	1
Seasons	continuity 2012
Usage	hiking
Sport	Camping & Outdoor
Volume capacity	0.08 Litres
Included components	1 x Victorinox Dual-Knife Sharpener with Ceramic Discs, 144 mm Length x 18 mm Height, Black
Batteries included?	No
Brand	Victorinox
Department	unisex_adult
Manufacturer	Victorinox
Language	English
Item model number	4.3323
Product Dimensions	23.11 x 3.18 x 1.78 cm; 40.82 g
ASIN	B000AR7AKG

VictorinoxDual Knife Sharpener, Swiss Made, Portable, Black/Red

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