- Constructed of brass, heat-resistant polymeric, it is far better than other material.
- Tight-tolerance, low-resistance upgraded hardware
- Copper core 10 coils and solid copper armature bar assure the strongest conductivity of the magnetic field to pull down even your needle smooth and firm.
- NO fake plastic screws or hardware. Versatile front and rear springs are also fully adjustable by screws.
- Coils: 10 warps coils,1 1/4"(32mm)