nail gun absolute professional good quality,very competitive price,soon delivery time,good service,parts supply nail gunLOW VELOCITY TOOL: SDT-A301 tool(similar with DX350), fit DN,.300head pins and .27strip loads,450 tool(similar with DX450),fit NK pins and .27 strip loads. D60 tool fit DN,.300head pins and .25 Disc loads, 307tool fit DN,.300 head pins and .22 single loads,HIGH VELOCITY TOOL: ...