... supply 3.with carbon brush Performance:* It is a semi-automatic Electric screwdriver . When the torque is locked, the ... A,B,C and D) are available.* It can be used for general home appliances,laptops,printers,copy ... machines and other screw fastening products.* It can be used for general home appliances,toys and other ... .p.m)1000500500Rating Power(W)50Screws diameter(mm)Machine screw2.6-4.03.0-5.04.0- ...