Proto 3/8" Drive 7 Piece Metric Short Hex Bit Set J4990-MST-SBD
Details
Proto's professional-grade 3/8-inch drive 7-piece metric short hex bit socket set specifically engineered for high-torque fastening in confined industrial and automotive spaces. Manufactured from high-strength forged alloy steel, this set features a full polish chrome finish for superior corrosion resistance and effortless maintenance in greasy environments. The short-profile bit design is optimized to provide maximum clearance in restricted areas where standard-length bits are too long to operate effectively. The set includes a curated metric range from 4mm to 10mm, all precision-machined for an exact, non-slip fit that prevents fastener rounding and protects expensive components. For convenience and rapid access, the bits are organized on a 6-1/4 inch socket bar with secure clips. This compact master set is a critical addition for technicians requiring industrial-level durability and specialized reach for modern metric assemblies. The shipping weight for this 7-piece set is approximately 0.83 lbs.
Key Features
Low-Profile Short Design: Precision-engineered to provide maximum accessibility in tight and obstructed mechanical environments where standard bits cannot fit.
Comprehensive 7-Piece Metric Range: Includes essential metric sizes: 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, and 10mm for versatile industrial applications.
Forged Alloy Steel Construction: Manufactured from premium tool-grade steel and through-hardened to deliver professional-grade durability and resistance to twisting.
Full Polish Chrome Finish: Provides a high-luster, protective layer against rust and environmental wear, allowing for quick cleanup in oily workshop conditions.
Precision-Machined Tips: Engineered for a tight, high-tolerance fit into metric hex fasteners to virtually eliminate cam-out and head damage.
Standard 3/8-Inch Drive: Fully compatible with all standard 3/8-inch drive ratchets, extension bars, and torque wrenches for seamless toolkit integration.
Organized Storage Solution: Comes complete with a 6-1/4 inch socket rail and clips to keep the entire set secure and organized within a tool chest.
Industrial Specification: Meets or exceeds professional performance standards for production assembly and heavy-duty mechanical maintenance.
Key Features
Low-Profile Short Design: Precision-engineered to provide maximum accessibility in tight and obstructed mechanical environments where standard bits cannot fit.
Comprehensive 7-Piece Metric Range: Includes essential metric sizes: 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, and 10mm for versatile industrial applications.
Forged Alloy Steel Construction: Manufactured from premium tool-grade steel and through-hardened to deliver professional-grade durability and resistance to twisting.
Full Polish Chrome Finish: Provides a high-luster, protective layer against rust and environmental wear, allowing for quick cleanup in oily workshop conditions.
Precision-Machined Tips: Engineered for a tight, high-tolerance fit into metric hex fasteners to virtually eliminate cam-out and head damage.
Standard 3/8-Inch Drive: Fully compatible with all standard 3/8-inch drive ratchets, extension bars, and torque wrenches for seamless toolkit integration.
Organized Storage Solution: Comes complete with a 6-1/4 inch socket rail and clips to keep the entire set secure and organized within a tool chest.
Industrial Specification: Meets or exceeds professional performance standards for production assembly and heavy-duty mechanical maintenance.
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