... time, good service; powder actuated toolLOW 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 ... head pins and .22 single loads,HIGH VELOCITY TOOL:660 tool fit 6mm or 1/4mm head pins, ... high velocity single loads,106 tool fit 6mm head pins,eye pins and 6.3x16 power loads powder actuated ...