The FR-6 is designed to fit the four-notch tool fittings found on some BMX & single-speed freewheels. Constructed from heat treated alloy tool steel, the FR-6 features a 1" tool fitting for use with an adjustable wrench, socket, or bench vise.

• Fits four-notch tool fittings with an approximate inner diameter of 32 mm and approximate outer diameter of 40 mm
• Removes four-notch BMX / single-speed freewheels on hubs with 1.37 x 24 TPI threads
• Center bore for axle clearance is 16 mm
• 1" hexagonal base can be used with 1" socket or wrench