At the core of this drill is Stryker's industry-exclusive pie drive Technology—a re-imagined motor that reconfigures internal components to create efficient, lightweight power and performance. We’ve replaced the nonfunctioning steel core in conventional motors with magnets in a “pie” configuration that use space efficiently and reduce the size of the overall housing. Instead of traditional round wiring looped around the core, we’ve used flat wiring that completely encases it. The result is a light, powerful motor that runs long and stays cool.