Proto® Bolt Extractor Sockets make it easy to remove rusted, rounded or damaged nuts and bolts The working end has a helical shaped flute to help grip rounded fasteners, round head bolts and pan head screws Proto® Bolt Extractor Sockets can be used in combination with other drive tools (such as ratchets, adjustable wrenches, sockets or combination wrenches) to help reach fasteners in difficult locations Additional Features Through-hole design helps gain access to fasteners at the end of long bolts or studs Can be used on fractional or metric fasteners 3/8" Drive size Set Contains: 7 mm, 1/4", 9/32" 8 mm, 5/16" 9 mm, 11/32" 3/8" 10 mm 11 mm, 7/16" 12 mm 13 mm, 1/2" 14 mm, 9/16" 15 mm, 16 mm, 5/8"  

Delivery 4- 7 weeks upon issue of PO