4 inches gear bar clamp with quick push rapid action ideal for projects requires constant use of clamping and unclasping

adjustable backing bar clamp black carpenter tool carpentry catch clamping force clipping path constant use copy space craftsman gear mechanism grip hand handle handlebar handy hold industrial industry isolated white lock machine metal power precision quick push release button rapid action rubber sliding moving head solid steel studio background tighten unclasping 600 lbs vibration resistant wooden woodworking inches ideal projects requires background