Dotco 12-05 Series Inline Grinders, Collet Guard features a robust design that has been continuously improved for six decades. Dotco 12-05 Series Inline Grinders, Collet Guard is compact in size for ultimate control and easy access to hard to reach areas. Dotco 12-05 Series Inline Grinders, Collet Guard are ideal for die and mold work and works well for deburring. Dotco 12-05 Series Inline Grinders, Collet Guard features a wide selections of speeds and is equipped with a dial throttle.