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 Size conveniently stamped on both ends of the beam for quick identification 0° offset on non-ratcheting end for breaking loose stubborn fasteners Manufactured from alloy steel for better strength and longer tool life Bright, full polish chrome finish easily wipes clean and resists corrosion Included tray for storage and organization. 17 Piece GearBox Metric Double Box Ratcheting Wrench Master Set. XL GearBox design features a longer beam to increase leverage and torque, Non-ratcheting end for breaking loose stubborn fasteners, 0 degree offset and slim profile to access tighter spaces and recessed fasteners, Surface Drive technology on the box end provides off-corner loading for better grip and reduced fastener rounding. Assembled Product Dimensions (L x W x H). 20.50 x 15.00 x 2.00 Inches.