6.35mm Hex to 4mm Magnetic Bit Adapter Socket Holder

Universal Magnetic Bit Adapter – Seamless Size Conversion for Any Job

Switch between 6.35mm (1/4") hex shank and 4mm insert bits in seconds with this compact, alloy steel magnetic bit adapter. Whether you're tackling electronics repairs, furniture assembly, or DIY home projects, this adapter ensures your screwdriver or power tool works with the bits you already own — no fuss, no wasted time.

Key Features

• Bidirectional Conversion: Available as a 6.35mm to 4mm adapter, a 4mm to 6.35mm adapter, or a convenient set containing both — giving you total flexibility on the workbench.
• Strong Magnetic Hold: Built-in magnetic design secures bits firmly during use, maintaining optimal control and preventing slippage or bit drop.
• Durable Alloy Steel Construction: Machined from high-quality alloy steel for long-lasting strength and resistance to wear, even under repeated daily use.
• Easy Conversion: Simply attach the adapter to your screwdriver or power drill and instantly gain access to a wider range of bit sizes — no tools needed for attachment.
• Wide Application Range: Perfect for repairing mobile phones, cameras, computers, and other electronic devices, as well as general hand and power tool use around the home or workshop.
• Compact & Lightweight: Silver alloy steel finish with a slim profile that won't add bulk to your toolkit.

Specifications

• Material: Alloy Steel
• Color: Silver
• Sizes: 6.35mm to 4mm / 4mm to 6.35mm
• Available Options: 1pc (6.35mm to 4mm), 1pc (4mm to 6.35mm), or 1 Set (both adapters)
• Country of Origin: Made in Mainland China

Package Includes

• 1 x Adapter Socket Sleeve or 2 x Adapter Socket Sleeves (depending on option selected)

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Frequently Asked Questions

Q: What sizes does this magnetic bit adapter support?

A: This adapter supports conversion between 6.35mm (1/4" hex shank) and 4mm insert bit sizes. You can choose a single adapter (6.35mm to 4mm or 4mm to 6.35mm) or purchase the full set containing both adapters for maximum versatility.

Q: Is this adapter compatible with both hand tools and power tools?

A: Yes! The universal magnetic bit adapter is designed for use with both hand screwdrivers and power drills/drivers. Its magnetic hold keeps bits securely in place regardless of the tool type, making it ideal for a wide variety of applications.

Q: What is the adapter made of, and is it durable?

A: The adapter is crafted from high-quality alloy steel, which provides excellent strength, durability, and resistance to wear. It is built to withstand repeated use in professional and home workshop environments alike.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.