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Sharpening hand tools takes either skill and practice or expensive equipment.  And unless you’re going to recreate the bevel free-hand, setting up the guide also takes time.  M.Power designed their Precision Sharpening System (PSS1) to provide an easy and inexpensive way to quickly put the edge back on your tools.

Instead of running the tool across a diamond abrasive stone, M.Power’s PSS1 holds the tool stationary and you move the diamond stone across the cutting edge.  You can sharpen chisels and plane irons from 1/8″ to 2-1/2″ wide.

M.Power machines the PSS1 from solid aluminum and anodizes it with a hard wearing finish.  The carriage magnetically holds the DMT monocrystalline diamond abrasive stone while it rides on dovetail rails made from nylon 66.  The carriage also allows you to easily change the sharpening angle from 25° to 30°.

To use the PSS1 simply insert the correct stone into the carriage — coarser if the tool is dull or finer if the edge just needs touching up — and place the tool flat against the PSS1 bed, butting it up against the fence.  Then glide the carriage along the track.  Switch to the next grit and repeat until your edge is keen.

The PSS1 will run you $75.  For that price M.Power includes a 220-grit preparation stone and a 440-grit finish stone.  You can also purchase a 120-grit roughing stone, a 600-grit fine-finishing stone, or a 1,200 super-fine finishing stone separately for about $13 each.

PSS1 [M.Power]
PSS1 [Hartville Tool]
PSS1 [Black Hills]

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3 Responses to Diamonds Are A Tool’s Best Friend

  1. Gary says:

    I think I’ll pass. 25 to 30 degrees. Is that inclusive of the range of bevels you can sharpen? What about carving tools and paring chisels? I’ve seen mortise chisels with a 35 degree bevel. It’s hard to tell from the pic. Does the wear on the stone occur in one strip on the stone? Granted the diamond stones are cheap, but even diamond stones wear out – especially if you’re hitting the same area regularly.

  2. Kieran says:

    Gary, from the first link it looks like you turn the blue bit to get two different angles, I don’t see any way of finely adjusting it.

  3. Brau says:

    The demo video definitely shows only 25º or 30º, achieved by flipping the slider around. I like the concept though as I much prefer the idea of holding the blade flat while moving the stone to the unwieldy rigs that hold the blade up at an angle.

    Uhoh. it just occurred to me this concept might be fairly easy to fab-up using a few supplies around the shop.

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