1859121 caterpillar:pump PUMP GP-

Bolt-Grip 1859121 Irwin Tools Impact Performance Series Bolt Grip Deep Well Bolt Extractor with 3/8-Inch Square Drive with 1/4-Inch Hex Adapter
Irwin Tools IMPACT performance series bits don't just work with impact drivers. They are designed specifically for them and the higher torque they produce || Reverse spiral flutes grip harder as resistance increases for maximum grip power. Deep Well fits over studs to remove even recessed broken fasteners || Constructed of premium high-carbon steel for durability and extended drilling life. Black oxide finish resists corrosion || Universal lobular design fits all types of fasteners. Square drive fits impact wrenches, or drills and impact drivers when used with included adapter