When searching for the right toolholder for CNC machining several things must be taken into consideration when selecting the right holder for your needs, capabilities and applications. Five very important aspects of tooling that increase productivity and the life of the toolholder and machining center are: the housing, bearings, seals, couplings, and presettable or cartridge-based adapter system. Housing Many manufacturers use castings, or two-piece housings for their toolhol