72 tooth ratcheting box end needs a minimal 5° to move fasteners vs. 30° for standard wrenches. Off-corner loading design on box end provides better grip and reduces fastener rounding. Thin head and beam provide greater access in confined work areas. Size conveniently stamped on both ends of the beam for quick identification. Manufactured from alloy steel for better strength and longer tool life. 30 Piece 12 Point Ratcheting Combination SAE/Metric Wrench Set with Wrench Racks. Bright, full polish chrome finish easily wipes clean and resists corrosion. Includes 2 solvent resistant compact racks with drop in wrench placement for storage and organization. Meets or exceeds ASME specifications.