3/8 In Drive Metric Long Hex Bit Socket - 4mm - SK Hand Tool

The SK Hand Tool 3/8 In Drive Metric Long Hex Bit Socket - 4mm (45954) is engineered for professional technicians and mechanics requiring reliable performance and extended reach in demanding environments. This durable tool combines a high-strength S2 steel bit with a cold-forged alloy steel socket, ensuring exceptional longevity and resistance to wear. Its specialized design facilitates access to deep-set fasteners, making it an essential addition to any professional toolbox.

Key Features

• High-Strength S2 Steel Bit: The 4mm hex bit is manufactured from high-strength S2 steel, providing superior torque capabilities and resistance to shock for demanding applications.
• Durable Alloy Steel Socket: The 3/8-inch drive socket is cold-forged from high alloy US steel, ensuring maximum strength and durability under rigorous use.
• SuperKrome® Finish: Features a polished SuperKrome® finish for enhanced corrosion resistance and a long service life, maintaining professional appearance and performance.
• Extended Reach Design: With an overall length of 6 inches (6-1/16 inch insert length), the long hex bit provides crucial access to recessed fasteners and components in tight spaces.
• Through-Hole Bit Replacement: Innovative through-hole design allows for quick and easy replacement of worn or broken bits, extending the life of the socket.
• Enhanced Bit Retention: The new bit holder design offers significantly increased bit holding strength, engineered to be 9 times stronger to prevent slippage during operation.

Applications

This long hex bit socket is ideal for a wide range of professional tasks, including automotive repair, industrial machinery maintenance, and general assembly work where metric hex fasteners are common. Its extended length is particularly beneficial for reaching bolts in confined engine bays, deep component housings, or electrical panels where standard hex bits cannot reach.

Specifications

• Manufacturer: SK Hand Tool
• Model Number: 45954
• Drive Size: 3/8 inch
• Tip Size: 4mm Metric Hex
• Bit Material: S2 Steel
• Socket Material: Cold-forged High Alloy Steel (Chrome Vanadium)
• Finish: SuperKrome®
• Overall Length: 6 inches (approximately 152.4mm)