Features:★ 4 Pole 12 Slot Hi-torque Motor Design ★ CNC Machined 6061 T6 Billet Aluminum Heatsink Can ★ High Purity Copper Windings Maximizes Efficiency ★ High RPM ABEC5 Oversized Bearings ★ Precision balanced rotor,smoothness for best reliability and maximum RPM ★ Stator - Super Thin (0.2mm) Laminations .