The new Snap-on 10-pc Ratcheting Open End Box Wrench Set (No. SRXRM710) features up to 80 gear teeth for minimal movement in tight areas. The speed open end provides quick, ratchet-like action; and a Flank Drive wrenching system on the box end, provides up to 20 percent more turning power with less risk of tool or fastener damage. The box ends are offset 15 degrees for clearance. Sized for optimum comfort and balance, this set is nickel-chrome plated to help protect against corrosion and allow for easy cleaning.