Keyway Broach A1 3mm High Speed Steel for CNC Cutting Machine Tool Size:A1 3mm Toro 53813 570Z Pro Series 99 inches 203mm 2M Toro 53813 570Z Pro Series 4" 180 Degree Pop Up Sprinkler and 15' Throw Features: Ideal for small lawn and shrub areas Patented Zero Flush Seal prevents water waste on start up Superior retraction spring and seal ensures proper retraction and prevents water waste Pre installed nozzle is easily replaced with any Toro nozzle Heavy duty stainless steel retraction spring improves pop down and resists corrosion Professional grade superior seal protects the sprinkler from dirt and debris Ratcheting riser for fine tuning arc alignment after installation Threads directly to standard 1 2" risers 15' Spray Radius just fix strobe light outdoor on the place where you need S which is a tool steel with high hardness Can afford a good cutting range and ample rigidity