Briley Standard Wrench 20 Gauge For All Briley Chokes. This standard wrench has the necessary hex adjusters to make precise changes when necessary. This Briley Standard Wrench Tool has a high impact chrome vanadium steel standard hex wrench head with the Briley standard symbol. Use this wrench with any Briley choke tube to make precise changes when necessary. The Briley Standard Wrench is the go-to tool for adjustments on the Briley range. Briley uses only the highest quality steel in their production of both their standard and custom made choke tubes. Briley uses only the highest quality wire in their choke tubes. This ensures the end user receives a product that is both durable and has the necessary strength required for Briley products. Specifications for Briley Standard Wrench: Manufacturer: Briley Additional Features: For All Briley Chokes Package Contents: Briley Standard Wrench Briley WR20: Standard Wrench 20 Gauge For All Briley Chokes