Durable materialThe material is made of new high-quality stainless steel, which is made of three kinds of shear teeth, which is durable, easy to use, high strength, high hardness and long service life. life. Product FeaturesThis external deburring and chamfering tool can quickly repair damaged bolts and tighten nuts to repair parts that cannot be used due to bolt damage. Safety Design Simple, safety-focused design protects your hands from sparks, burns and damaged tools. Compact size makes it easy to carry kit tools. ProfessionalQuickly repair damaged bolts and tighten nuts in place. Simplify repairs without replacing expensive or hard to find hardware. Wide ApplicationThis product is suitable for stainless steel, hardened steel, mild steel, copper, brass , aluminum, fiberglass, wood, plastic, threaded or unthreaded. It can also be used as a bottle opener.