【Widely Used】: It can be used in red brick walls, cement walls, foam walls, mixed brick walls and other brick wall buildings. It can be used to extract stones and walls to remove sharp objects. 【5 in 1 Set】: 2 x pointed chisels (15 x 1 cm, 25 x 1 cm), 3 x flat chisels (15 x 2 cm, 25 x 2 cm, 25 x 4 cm), around To meet your different needs. 【Applicable Suitable】: Suitable for all electric hammers, plug-in hammers or impact drills with SDS-Plus holders such as Bosch, Makita, Hilti, Einhell, Kress, Millwaukee and Dewalt etc. 【High Quality 40CR Steel】: High quality steel forging + high temperature quenching treatment, high hardness, high wear resistance, high toughness. 【Protective Layer 【Surface Protection】: Additional surface protection can minimize friction and wear and extend service life.