I totally get the concept of the small, cordless circ saw, especially for use as a trim saw. But Makita took the concept a step further, shrinking the blade down to a tiny 3-3/8″ — and shrinking the battery as well, powering the saw with one of their little 12V li-ion units. Makita claims that even with the itty-bitty blade you’ll see a 1″ cut depth at 90 degrees, and 5/8″ at 45. Clearly this saw is intended for minute jobs like notching.
But the big question: How the hell long can this thing possibly spin that 1,400 RPM blade on a single charge? When I think “high amp-draw cordless,” the circ saw is the first tool in my mind (or possibly angle grinders). The larger trim saws just barely make the grade with large li-ion batteries, so the idea of swapping in sub-compact cells baffles me a bit.
Of course, I could be completely wrong. And I hope you’ll let me know if you’ve had a chance to play with one of these, or if you know of a killer application for a super-short-run, tiny circ — something that you can’t do just as easily with something you already own (and something that’s useful for other tasks as well). Street pricing starts around $220 for the kit, and (sadly) Makita doesn’t offer it in bare-tool form.