BaerCoil thread repair kit Contents of the cassette: 1 x HSSG BaerCoil Core Hole Twist Drill Bit 1 x HSSG BaerCoil special tap > ISO1-4H 1 x BaerCoil Hand Installation Tool 1 x BaerCoil Tang Breaker + BaerCoil thread inserts made of stainless steel material no. 1.4301; 10 pieces of length: 1.5 x D BaerCoil: For thread repair of damaged or worn threads For scrap recovery For thread reinforcement of materials with low shear strength such as Aluminum & Alloy. With BaerCoil, the thread is better and stronger than the original thread! Use in mechanical engineering, automotive, electrical and medical technology as well as in aerospace.