Hudy Slot Tire Truer For 1/8 And 3/32 Axles: This tire truer is intended for use with slot car wheels that have 1/8" and 3/32" Axles. The parts are produced on computer controlled CNC machines to highly accurate specs from high-tech alloys. After assembly, every single truer is individually tested under extreme race conditions, and undergoes rigorous, quality control inspection by specially-trained technicians. 100% reliability and unsurpassed quality. That's why there are Hudy tire truers in every slot racers pit box.• Adjustable grinding of tire diameter and angle• Adjustable tire width (using covered slicing needle)• Specially-designed and manufactured grinding drum for highest-quality grinding• Spindle shaft and wheel axle are ball-bearing supported to eliminate all vibrations during operation• Installed slave motor, switch box, and connection cable• Both wheel axles 1/8" + 3/32" included• New improved long-lifespan handy carrying case