Reddit reviews Makita GD0801C 1/4-Inch SJS Die Grinder

Electronic Controller for Operator ConveniencePowerful 6.6 AMP motor delivers 7,000-29,000 RPM for faster material removalSuper Joint System - SJS technology helps prevent motor and gear damage by allowing the drive shaft to slip if the wheel is forced to a stopVariable speed control dial enables user to match the speed to the applicationConstant speed control automatically applies additional power to the motor to maintain speed under load