1. With heat resistance, low temperature, anti-oxidation, corrosion resistance, abrasion resistance, toughness. 2. Good for BGA repair,dismantling phone IC chip. 3. One handle and 6 pcs blades in different shapes. - Handle: 13.8 x 0.8cm - Blades: 3.7 x 0.6cm, 3.7 x 0.7cm, 3.7 x 0.6cm, 3.7 x 0.6cm, 3.7 x 0.6cm, 3.7 x 0.6cm