Five-piece base set is made of high-carbon steel. Reverse spiral flutes are designed to bite down to provide maximum gripping power. Universal lobular design fits all types of fasteners. 3/8 in square drive for use with hand ratchets, impact wrenches, air ratchets, hexagonal flats for use with flat wrench, pliers, adjustable wrench, sockets or VISE-GRIP locking pliers. Includes 3/8 in, 7/16 in (11 mm), 1/2 in, 9/16 in (14 mm) and 5/8 in (16 mm) bolt grips.
- When you are faced with a rounded off, rusted tight or painted over bolt, this bolt extractors will break it free
- Reverse spiral flutes are designed to bite down to provide maximum gripping power
- High carbon steel ensures longer life and greater durability
- Universal lobular design fits all types of fasteners
- 3/8 in square drive for use with hand ratchets, impact wrenches and air ratchets, hexagonal flats for use with flat wrench, pliers, adjustable wrench, sockets or VISE-GRIP locking pliers
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Catalog
https://assets.unilogcorp.com/187/ITEM/DOC/IRWIN_100001365_Catalog.pdf