Durable Material The material is made of high quality brand new stainless steel, consists of three kinds of shear teeth, is durable and easy to use, has high strength, high hardness and long service life. Product Features This deburring external chamfering tool quickly repairs damaged bolts and tightens nuts to repair parts that cannot be used due to bolt damage. Safe Design The simple and safety-conscious design protects your hands from sparks and burns, as well as damaging tools. Compact size makes it easy to carry the tool in the kit. Professional Quickly repairs damaged bolts and tightens nuts in place. Simplifies the repair process and eliminates the need to replace expensive or hard to find hardware. Widely Application The product is suitable for stainless steel, hardened steel, low carbon steel, copper, brass, aluminum, fiberglass, wood, plastic, with or without threads. It can also be used as a bottle opener. 5.1*2.8*2.8cm