12R0500-36 Dotco 12-05 Series Inline Grinder. Dotco 12-05 Series Inline Grinder features a robust design that has been continuously improved for the last six decades. Dotco 12-05 Series Inline Grinder has a compact size for ultimate control and easy access to confined areas. Dotco 12-05 Series Inline Grinder is ideal for die and mold work and also works well for deburring. Dotco 12-05 Series Inline Grinder features a comprehensive selection of speed and is equipped with a dial throttle. Collet Size: 1/4” Free Speed (rpm): 40,000 Abrasive Capacity: 1/4” Carbide Burr 7/8” Mounted Wheel Type Housing: Composite Weight: 0.7lbs/0.32kg Overall Length: 5.9”/150mm Air Inlet Size: 1/8”