Four double edged cutting/gripping sides with 8-points of contact to make non-slip engagement with the bolt/screw. Ensures removal of even the toughest bolts/screws. Supplied in storage case. Features & Benefits: • Four double edged cutting/gripping sides. • 8-Points of contact to make non-slip engagement with the bolt/screw. • Ensures removal of even the toughest bolts/screws. • Contents: #1; 3.2-4.2mm(3/16"-1/4"), #2; 4.8-7.1mm(5/16"-3/8"), #3; 6.4-9.5mm(7/16"-1/2"), #4; 8.7-12.7mm(1/2"-9/16"), #5; 11.1-15.9mm(5/8"-3/4"). • Supplied in storage case. • Model No. AK752 Specifications: Model No AK752 Brand: Sealey Contents: #1; 3.2-4.2mm(3/16"-1/4"), #2; 4.8-7.1mm(5/16"-3/8"), #3; 6.4-9.5mm(7/16"-1/2"), #4; 8.7-12.7mm(1/2"-9/16"), #5; 11.1-15.9mm(5/8"-3/4") Nett Weight: 0.00kg