Proto, J4990-4M, HEX BIT SOCKET, 4 mm, 3/8 in Drive, Metal, Full Polish Chrome

Crafted for durability and long-lasting performance, this hex bit socket features a 4 mm size and is designed to fit a 3/8 inch drive. Manufactured by Proto, it utilizes a heat-treated alloy that not only enhances wear resistance but also minimizes distortion over time, ensuring reliable functionality for various applications. Its full polish chrome finish provides both aesthetic appeal and increased resistance to corrosion, making it an excellent choice for demanding environments. Designed with a hex opening that securely holds the bit, this socket can effectively manage torque loads, providing you with confidence in your work. Additionally, it comes with a limited lifetime warranty, underscoring Proto's commitment to quality and customer satisfaction.

Prop 65

• No

Features

• Manufactured by Proto
• Hex opening holds the bit allowing the bit holder to take the torque load.
• Limited lifetime warranty
• Made using a heat treated alloy for wear-resistance which helps minimize distortion for a long life.

• Size: 4 mm
• Drive Size: 3/8 in
• Length: 2.700 in
• Width: 0.500 in
• Height: 0.500 in
• Weight: 0.110 lbs
• Material: Metal
• Finish: Full Polish Chrome
• Impact Or Standard: Standard
• Etched Or Stamped: Yes
• Country of Origin: United States