Picks are key components of mining and tunneling machinery, mainly used in coal mining  and tunnel excavation operations. They are classified into shearer picks (such as models  U82 and U95) and roadheader picks (such as models S100 and S135) according to their  applications. Picks need to work in coordination with pick sleeves and pick holders, which  not only facilitates the replacement of picks and sleeves but also significantly extends the  replacement cycle of pick holders.