Proto J4990-8M 3/8 Hex Bit Socket 8mm

Product Description

The Proto J4990-8M is an 8mm hex bit socket with a 3/8-inch drive, made by Proto. Designed for durability, it features a heat-treated alloy construction that resists wear and minimizes distortion.

• Made of heat-treated alloy for wear resistance
• Hex opening holds the bit to take the torque load
• 3/8-inch drive, 8mm size

Product Highlights

This socket combines a 3/8-inch drive with precise 8mm sizing, perfect for various mechanical tasks. Its hex opening design ensures the bit stays in place, distributing the torque load effectively.

Product Information

Standard Information

• Brand: Proto
• MPN: J4990-8M

Technical Specifications

• Drive Size: 3/8 inches
• Tip Size: 8mm
• Bit Length: 1-5/8 inches
• Material: Alloy Steel
• Finish: Nickel Chrome
• Measurement System: Metric
• Weight: 0.149 ounces
• Dimensions: 6.25 x 0.82 x 0.51 inches