Check the listing for details. Valve Lash Rocker Arm Adjusting Wrench Kit. Condition: New. Listed at 109.99 USD. VALVE LASH ADJUSTMENT TOOL KIT – Specialized tool set designed to simplify accurate rocker arm and valve lash adjustments during engine maintenance or assembly., TWO-PART WRENCH DESIGN – Innovative design allows the box end wrench to hold the rocker nut while the T-handle hex key adjusts the set screw, allowing one-handed operation., MULTIPLE WRENCH SIZES INCLUDED – Kit includes 7/16", 9/16", and 5/8" box end rocker arm adjusting wrenches to fit common rocker nut sizes., T-HANDLE HEX KEYS PROVIDED – Includes 1/8", 3/16", and 7/32" T-handle hex wrenches that drop through the adjustment wrench for quick and precise adjustments., DURABLE STEEL CONSTRUCTION – Manufactured from strong steel for long service life and reliable performance during repeated valve lash adjustments.