The Ryobi Elect. Tools 89240020009 Soft Start provides controlled motor startup to reduce electrical and mechanical stress. Designed as a replacement soft-start module for compatible power tools, it gradually increases voltage to the motor during startup instead of delivering full power instantly. This minimises torque jerk, lowers inrush current, and reduces wear on internal componen... https://www.wholetoolbox.com/ryobi-celect-tools-89240020009-soft-start