Electric mini lapping machine is for lapping alloy welding pin. Tungsten alloy ultra-high hardness grinding wheel is suitable for tungsten copper, aluminum oxide and others welding needle for grinding. Strong magnetic suction can suck on machine shell to use. Use mobile phone charger standard USB port for charging in 5V. It is in high speed electrical machine silence and reducing shake and good in use. It is small and stainless steel and special plastic structure so that it is easy to use.
