Bosch recently came out with a new carbide tipped oscillating multi-tool metal-cutting blade (OSC114C) that they say lasts up to 30X longer than their conventional bi-metal blades.
Although specified as a metal-cutting blade, the new OSC114C can also be used to cut wood, fiber board, cement board, plaster and lathe, ceramic tile, and other types of tough construction materials.
The carbide tip is welded to a high-carbon steel body using a proprietary process for an “unbeatable combination” of speed, precision, and durability.
Blade length: 1-1/4″
Interface: 1.25mm (vs. 1mm for conventional blades) for greater vibration reduction
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Bosch’s OIS oscillating multi-tool interface is compatible with all of their oscillating tools, as well as other professional brands’ tools.