With a blade that oscillates over 40,000 times per second—faster than you can see or feel—these knives make fast, clean, and precise cuts in a variety of material. Use them to remove supports from 3D printed objects, shape printed circuit boards, and sculpt custom spacers, gaskets, and parts of all kinds.

These knives are faster than manual precision-blade knives and scalpels. Unlike hot-blade knives, they do not require a heat source and won't melt, burn, or crack your material. They're also less costly and easier to set up than laser cutters.

Since they have a momentary switch, press and hold the button on the handle to turn them on. They turn off when you let go of the button for safety. The contoured handle makes them easy to hold as you apply pressure.

A rechargeable battery means you can bring these knives anywhere you need. They also include a pack of 40 replacement blades.