... VELOCITY DRIVE PIN TOOL:1):SDT-A301 tool(similar with DX350), fit DN,.300head pins and .27strip loads ... ,2):450 tool(similar with DX450),fit NK pins and .27 strip loads. ... tool fit 6mm head pins,eye pins and 6.3x16 loadspower load specially fit powder actuated tool, ... 1):.27(6.8x11) single or with strip,green,yellow,red,black colour2):.25(6.3x10,6.3x12)single or with disc, ...