... 4 Anti-psark tool 1 Hand Tool Anti-spark , Spark Free ,Non-sparking Square File 2 MAT: Aluminum-Bronze , Beryllium- Copper3 ... -proof Area 5 Payment: T/T 100% in advance .6 Technology : Casting polishing7 High Quality and Competitive Price With Various Size ... generation, railroad, and mining etc. Hand Tool Anti-spark , Spark Free ,Non-sparking Square File