Professional Blue & Golden Bullet Heavy Duty Tattoo Coil Machine Liner Or Shader. Cast from pure brass, precision milled and tapped for excellent performance. Available as liner & shader. Perfectly balanced, Recessed coil screw ports, Split iron tube vise,10 wrap coils with solid iron cores, Brass contacts, Sand casted solid one-piece brass frame, 100% hand built and custom tuned to your specifications.