Proto 1/4" & 2/8" Drive 12 Piece Hex Bit Set J4770-12-SBD

Proto's professional-grade 12-piece mixed drive hex bit socket set that utilizes both 1/4-inch and 3/8-inch drive sizes to provide a versatile range of fractional hex bits. Manufactured from high-strength alloy steel, these sockets feature a full polish chrome finish for superior corrosion resistance and ease of cleaning. This set is engineered to handle a broad spectrum of fastening tasks, from delicate precision work to higher-torque mechanical repairs. The set is organized on a 9-inch socket bar with clips, ensuring secure storage and quick identification in the field. Each bit is precision-machined for a tight, non-slip fit into hex fasteners, which minimizes the risk of cam-out and prevents damage to both the bit and the fastener. This combination set is an essential solution for technicians who need a compact but comprehensive fractional hex range that bridges two different drive sizes. The shipping weight for this 12-piece set is approximately 1.10 lbs.
Key Features
Versatile 12-Piece Selection: Includes a range of fractional sizes across two drive sizes: 1/4" Drive (1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32") and 3/8" Drive (3/16", 7/32", 1/4", 5/16", 3/8").
Dual Drive Compatibility: Combines 1/4" drive for precision and restricted access with 3/8" drive for applications requiring higher torque.
Industrial Strength Construction: Forged from premium alloy steel and heat-treated to professional standards for maximum durability and resistance to twisting.
Full Polish Chrome Finish: Provides a high-luster protective layer against rust and environmental wear, simplifying tool maintenance.
Precision-Machined Tips: Engineered for a secure, high-tolerance fit to virtually eliminate stripping and fastener damage.
Organized Storage: Includes a 9-inch socket rail and clips to keep the set secure and organized within any tool chest or mobile kit.
Industrial Specification: Meets or exceeds professional performance standards for heavy-duty mechanical and assembly work.