Proto 3/8" Drive 13 Piece Hex Bit Socket Set J4902A-SBD

Proto's J4902A-SBD is a professional-grade 13-piece hex bit socket set designed to provide a complete fastening solution for industrial, automotive, and aerospace applications. Utilizing a versatile 3/8 inch drive system, this set combines both metric and fractional (SAE) sizes to ensure technicians have the precise fitment required for a wide array of mechanical tasks. Each bit is precision-forged from high-strength alloy steel with a dual-finish design—featuring a black oxide bit for maximum grip and a full-polish chrome socket for superior corrosion resistance. By integrating the J4902A-SBD into your professional toolkit, you gain a high-torque, durable equipment set that facilitates efficient maintenance and assembly even in demanding production environments.
Key Features
Comprehensive 13-piece set featuring a mix of standard fractional (SAE) and metric hex bit sockets.
Total product weight of 2.03 lbs provides a substantial and durable feel suitable for heavy-duty shop use.
Includes SAE sizes from 1/8 inch to 3/8 inch and metric sizes from 4 mm to 10 mm for broad utility.
Manufactured from heat-treated alloy steel for increased strength and resistance to abrasive liquids and chemicals.
High-performance bit design allows for effective torque transfer and rotation even at a thirty degree offset in tight areas.
Full-polish chrome finish on the sockets provides long-term durability and makes cleanup effortless after oily repairs.
Supplied with two socket bars (6-1/4 inch and 9 inch) and a socket clip for organized storage and rapid tool identification.
Engineered to meet or exceed ASME technical standards for professional tool safety and reliability.