Gold Tip Fact Weight System Wrench .166. This wrench by Gold Tip does exactly what it sounds like it does - it lets you adjust the weight of your arrows with no let-up while the arrows are still on the shaft. The Gold Tip FACT Weight System .166 Wrench is the specialized tool that allows you to do just that. This wrench has special tools for the big jobs like turning the big FACT weight screws and for taming and tuning Gold Tip arrows with a smaller diameter. With the Gold Tip FACT Weight System Wrench install or remove weights from arrows with the point still on the shaft offering ultimate customization and tuning. Specifications for Gold Tip FACT Weight System .166 Wrench: Manufacturer: Gold Tip Color: Black Features of Gold Tip FACT Weight System .166 Wrench: Two size options for different shafts .166 Wrench for micro diameter shafts. Package Contents: Gold Tip FACT Weight System .166 Wrench FACT weight system wrench allows you to install or remove FACT weight screws while the points are installed in the arrow offering ultimate customization and tuning. Features/Specifications: Two size options for different shafts.166 Wrench for micro diameter shafts.