According to the actual requirement of underground bolting projects, Siton has specially researched and developed a series of single boom bolting drill rigs for bolt support in tunneling construction. Due to that the rock bolting rigs have the characteristics of small size, flexible walking, simple operation, and high efficiency, Siton underground development rock support drill rigs can meet the requirements of step method, CD method, full section of medium-sized tunnels and other construction methods. Especially when using the upper and lower guide step method for excavating, the effect of using multiple rigs at the same time is the best, which can replace manual traditional drilling operations. The drill rigs are used for drilling vertical bolting holes, pre-bolting holes, grouting holes, anchor holes, etc.