Proto J4990-4MXL Extra Long Socket Driver Bit Metric 3/8 in 4 mm

Product Description

The Proto J4990-4MXL is an extra long socket driver bit by Proto. This bit is designed with a measurement system in metric and fits a three-eighth inch drive. It features a four millimeter bit size and has a length of five inches. With a total length of six and three thirty-seconds inches, it is made from alloy steel and has a polished chrome finish.

• Extra long design for extended reach
• Compatible with three-eighth inch drive tools
• Constructed from durable alloy steel for longevity

Product Highlights

This socket driver bit is ideal for tasks requiring a long reach and precision. The polished finish aids in corrosion resistance and ensures smooth operation.

Product Information

Standard Information

• Brand: Proto
• MPN: STAPR-J49904MXL

Technical Specifications

• Bit Type: Hex
• Finish: Polished Chrome
• Material: Alloy Steel
• Overall Length: 6-3/32 inches
• Type: Extra Long
• Measurement System: Metric
• Drive Size: 3/8 inches
• Bit Size: 4 mm
• Bit Length: 5 inches