The ga5021c angle grinders have been developed as the most advanced models of the makita ga5010 series. The electronic control system provides constant speed control, soft start, current limiter, anti-restart protection and an led power light. The super joint system sjs reduces vibration and helps to ensure greater user safety and longer tool lifetime, while the large trigger provides ergonomic control. Makita’s super joint system was introduced to help prevent damage to the tool and protect the user from injury. Sjs is a mechanical clutch system that features a coil spring wrapped around the internal drive spindle. The coil tightens around the spindle when the machine is started, to deliver the motor’s power smoothly and efficiently to the drive shaft or spindle. If the blade jams in the material being cut, it can potentially overload the motor, but makita’s sjs instantly disengages the drive to the disc and the drive spindle rotates freely, before engaging again to reduce the risk of gearbox damage and injury to the operator. Features & benefits corded 125mm angle grinder soft start motor electronic current limiter led power light restart protected constant speed control for consistent performance under load sjs system helps to improve user safety and prevent damage to the tool large, comfortable trigger brushes can be easily accessed via the side of the housing specifications input wattage: 1450w max wheel diameter: 125mm bore diameter: 22mm spindle size: m14 x 2mm no ...