8mm (5/16"), 10mm (3/8"), 13mm (1/2"), 11/16", 19mm (3/4")
Features
• Bolt grip for removing rounded, rusty or painted bolts
• Unique reverse spiral flute design securely grips and removes stubborn nuts and bolts
• Can be used with a hand ratchet 3/8" square drive
• Has hexagon flats for use with a spanner or adjustable wrench
• Universal lobular design for all types of fasteners