A brushless motor comprising: a stator provided with coils of three phases (U, V, W) wound with a winding and an insulator for insulation of the coil provided with coil winding parts each wound with the winding and a rotor having a magnet and freely rotatably disposed inside the stator, wherein six coils are provided two for each phase and the six coils are arranged in the order of a U-phase first coil, a W-phase second coil, a V-phase first coil, a U-phase second coil, a W-phase first coil, a V-phase second coil along the circumferential direction, the coils being wound in the order of U-phase first coil, U-phase second coil, V-phase first coil, V-phase second coil, W-phase first coil, W-phase second coil in a single stroke, the insulator wound with the coil of the U-phase first coil, U-phase second coil and W-phase first coil has terminal mounting parts each provided radially outward of the coil winding part and each having a coil connection terminal to which the winding is connected; and the insulator wound with the coil of the V-phase first coil, V-phase second coil and W-phase second coil has first guide parts provided radially outward of the coil winding parts not having the terminal mounting part and configured to guide the winding, wherein a crossover wire connected between the V-phase coils (V1, V2) passes on the inner side of the terminal mounting part at the insulator having the U-phase coil connection terminal wound with the coil of the U-phase first coil and characterized in that the first guide part has an opening that allows the inside and outside of the first guide part to radially communicate with each other, and the opening is configured with a winding start portion of the coil inserted therethrough. a stator provided with coils of three phases (U, V, W) wound with a winding and an insulator for insulation of the coil provided with coil winding parts each wound with the winding and a rotor having a magnet and freely rotatably disposed inside the stator, wherein six coils are provided two for each phase and the six coils are arranged in the order of a U-phase first coil, a W-phase second coil, a V-phase first coil, a U-phase second coil, a W-phase first coil, a V-phase second coil along the circumferential direction, the coils being wound in the order of U-phase first coil, U-phase second coil, V-phase first coil, V-phase second coil, W-phase first coil, W-phase second coil in a single stroke, the insulator wound with the coil of the U-phase first coil, U-phase second coil and W-phase first coil has terminal mounting parts each provided radially outward of the coil winding part and each having a coil connection terminal to which the winding is connected; and the insulator wound with the coil of the V-phase first coil, V-phase second coil and W-phase second coil has first guide parts provided radially outward of the coil winding parts not having the terminal mounting part and configured to guide the winding, wherein a crossover wire connected between the V-phase coils (V1, V2) passes on the inner side of the terminal mounting part at the insulator having the U-phase coil connection terminal wound with the coil of the U-phase first coil and characterized in that the first guide part has an opening that allows the inside and outside of the first guide part to radially communicate with each other, and the opening is configured with a winding start portion of the coil inserted therethrough.