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The Bosch concrete drill model 11228 is one of the older Bosch models that has three modes. The size and power consumption of the device are slightly smaller than the Bosch 11253 model, and they have fewer similar parts. Except for a few parts such as the crank bearing, the mode switch, and the parts of the pen holder and the gearbox shoe, the rest of the parts do not fit together and are not similar. This device, like the Bosch 11253, is not a copy model. This model is referred to by the brand name as the GBH2_24DSR model. #mihanabzar #repair #میهن_أبزار