Makita Blade Sharpener

Christopher Cunningham

The water-cooled stone makes quick work of sharpening tools without affecting their temper.

When I started building boats in 1978, I used a blade guide, a large diamond hone and three Japanese water stones to sharpen my tools. I was proud of the mirror-shiny finish I could put on the blades, but after I had an opportunity to use the Makita Blade Sharpener when I was teaching at WoodenBoat School, sharpening tools by hand suddenly seemed quite tedious. I didn’t waste time getting a Makita for my shop at home. That was 21 years ago, and it is still working and spinning the same waterstone wheel.The motor enclosed in the base turns the wheel at 560 rpm and makes an easily tolerated whirring sound. A reservoir at the back drips water onto the stone, keeping the blade cool and preventing the pores of the stone from filling with metal. A circular wheel cover, raised slightly above the surface of the stone, collects the water and slurry and sends it out through a tube to be collected. A rail supported by two posts at the front of the machine can be adjusted to support blades and edge tools at whatever angle you choose. For sharpening jointer and planer knives (up to 15-3/4″ long) there’s a blade holder included that slides back and forth on the rail to move the knives across the stone. The wheel guard has to be lowered to allow the knives to reach the stone so it no longer collects the water; it spins out in all directions and has left a stripe on my shop wall and apron. With the guard down you can touch up the flat side and remove the burr on chisels and hand-plane blades, but you have to be very careful: the stone can grab the blade and pull it out of your hands. I’m happy to report that I’ve never lost my grip on a blade nor seen what damage it could do spinning around. It’s safer to use a regular water stone to dress the blade backs. I have a cotton buffing wheel that I use to remove the burr.