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Set Includes: Driver, 10 Bits, 2 Bit Holders and Case
Designed to loosen hard to turn bolts and nuts
Hand impact driver has heavy-duty spring for added torque
The TorquePlus design allows for quick and easy socket engagement to the fastener flats, not the corners
Popular interchangeable bits are packaged in plastic blowmolded box for easy storage, Made in USA
Description Product Description Impact Driver and Bit Set SAE Drive Size 3/8 In Drive Type Square Std Bit Point Styles Included 6 Tip Type Hex Slotted and Phillips Number of Pieces 13 Finish Black Oxide Sockets Included 1/4 In and 5/16 In Hex #1 #2 & #3 Phillips 1/4 In and 5/16 In Hex 3/16 In and 9/32 In Slotted Standards Federal Specification GGG-W-660A ANSI B107 2 Includes 3/8 In Impact Driver 3/8 In Drive 1/4 In and 5/16 In Hex Bit Holders Heavy-Duty Spring Plastic Blow Molded Box From the Manufacturer All Proto impact sockets incorporate the TorquePlus wrenching system. The TorquePlus design is a high performance drive configurationwhich allows for quick and easy socket engagement to the fastener flats, not the corners. The configuration employs a radius-corner design, shifting contact area and stresses over a large area of the socket, minimizing slippage. The internal design of the TorquePlus minimizes fastener rounding, helps to extend fastener life, and allows the user to more easily turn worn, rounded, or rusted fasteners. Proto impact sockets are made from special alloy steel, and are heat treated for the correct balance of strength and hardness, while the one-piece construction ensures their concentricity. Socket wall thickness is optimized to provide maximum strength and ample access to restricted fasteners. Sockets are manufactured to the most up to date industrial specifications, assuring concentric openings, large clearance holes, and tight nut end tolerance.