1. Material: chrome vanadium steel 2. Scope of application: repair of electrical appliances, assembly of furniture, etc 3. Standard shank diameter, hexagonal edge 6.35mm shank diameter interface, wide applicability 4. The bits are magnetic, more convenient to use 5. Multiple specifications for choice, to meet diversified needs 6. Compact size, easy to carry and go out for maintenance work 7. Can be used with electrical drill, ratchet screwdriver and small fly screwdriver
