Tilting the first single-key copy machine 
220-key copy machine efficient use of lever-type design, to facilitate the use of single-hand operation. 
Can copy the high security of the ramp teeth keys (such as high-enemy the United States) and many key countries in the world. 
Fixture rotation fixture can be used on all sides. 
Precision-guided device can be fine-tuning of the various cutting depth of the adjustment to quickly and accurately.