1.Heat dissipation design,dust-proof, heat sink block
Larger vent design improves heat dissipation speed prevents the machine from overheating, and improves the service life of the whole machine
2.Create stainless steel chuck
Made of imported steel with heaw gold,durable and durable stainless steel chuck won't drop
3.3C wire is more durable
It can also adapt to harsh and harsh environments, resistant to high temperature/low temperature/corrosion/abrasion