... and stronger design Detailed informaton of Electrical Power Feed:Features: *Special electrical relay protects Against damage caused by ... , we also supply the following products: (1) Measuring Tools------Vernier Calipers, Electronic Digital Calipers, Micrometers, Dial Indicators, ... , Sleeves, Vises, Working Tables, etc (3) Cutting Tools------including Drills, End Mills, Milling Cutters, Slitting Saws, ...