... example, drilling holes with rotary hammer in concrete, cutting and grinding tests for angle grinder etc. In addition, check the ... of the power tools for durability, such as cutting discs for resin, grinding discs, saw blades for woodwork, all kinds of drill ... and labor force;Practicability: Multifunctional; it can simulate drilling, cutting, grinding and sawing etc. in 3D directions; widely used in ...