SK 86013 SuperKrome 13 Piece 12 Point 1/4-Inch to 1-Inch Combination Wrench Set Tough and reliable 13-piece SuperKrome fractional combination wrench set Patented SuperKrome finish for durability and maximum corrosion resistance SureGrip hex design drives the side of the fastener, not the corner Rounded edges for improved gripping and increased comfort Limited lifetime warranty