It may not happen often, but sometimes you need to make a cut flush with the edge of your saw — you might be in a tight space or there’s some obstruction in the way preventing you from completing the cut. This is no problem with a hand saw, but it’s almost impossible with a tool like a jigsaw where the blade can be over an inch away from the edge of the shoe. That’s where a flush cut blade like DeWalt’s DW3311 comes in handy.
Made in the USA, the 4″ T-shank style blade fits Bosch and DeWalt saws. The 11-tooth-per-inch blade has a 3″ cutting length. The body is thick to minimize deflection, and we’re guessing the relief holes are probably for clearing chips, keeping the blade cool, or reducing the mass of the blade. You’re not going to cut tight circles with this blade chucked into your jigsaw, but it will let you cut to the front of your jigsaw’s shoe if the blade is less than 1-1/4″ away from the edge.
Other companies like Mibro and Vermont American sell similar products, but pricing for Dewalt’s version of the flush cut jigsaw blade starts at $7 before shipping, according to Google Products.