3400MZ-15 KO-KEN Socket Point

Review KO-KEN 3/8 Sq. Dr. Socket 15mm Point Length 21mm Z-series Silver

The Ko-ken 3400MZ-15 3/8 inch socket is a high-performance tool from the Z-series line, designed to deliver superior torque and durability for professional mechanics and DIY enthusiasts. This socket is specifically engineered with a 15mm point and 21mm outsize to fit and provide access to bolts and nuts that may be difficult to reach with standard sockets.

The 3400MZ-15 socket is part of Ko-ken's Z-series line, which features a unique zinc alloy coating that provides excellent resistance to corrosion and wear. The zinc alloy coating also ensures a secure grip on the socket, reducing the risk of slippage during use.

The socket's 3/8 inch drive size is a common standard in the automotive industry, making it compatible with a wide range of torque wrenches, ratchets, and other hand tools. The 15mm point design allows for easy engagement with hexagonal bolts and nuts, while the 21mm outsize provides greater clearance for bulky components and tight spaces.

The Ko-ken 3400MZ-15 socket is manufactured to meet or exceed ASME B10.12.1 standards, ensuring that it meets the highest levels of quality and safety. Its chamfered edges provide smooth engagement with fasteners, reducing the risk of rounding or damaging them during use.

The socket's robust construction is further enhanced by its precise machining and tight tolerance, which ensures a perfect fit every time. Its polished chrome finish not only looks great but also provides an additional layer of protection against rust and other environmental factors.

In summary, the Ko-ken 3400MZ-15 3/8 inch socket is a high-quality, high-performance tool that is perfect for mechanics and DIY enthusiasts who require a socket with a 15mm point and 21mm outsize. Its zinc alloy coating provides excellent resistance to corrosion and wear, while its robust construction and precise machining ensure a perfect fit and long-lasting performance.

The Ko-ken 3400mz-15 3/8 inch socket is a 15mm point with a 21mm square drive. This socket is designed for use with impact wrenches and torque wrenches. Here are some potential pros and cons of buying this socket:

1. High-quality construction: Ko-ken is a well-known brand in the automotive industry, and their sockets are known for their durability and precision.

2. Wide application: The 3/8 inch drive size is a standard size for most impact wrenches and torque wrenches, making this socket compatible with a wide range of vehicles and equipment.

3. Smooth engagement: The 15mm point size and the 21mm square drive provide a smooth engagement with the bolts and nuts, reducing the risk of rounding off or damaging the fasteners.

4. Corrosion resistance: The socket is made of chrome molybdenum steel, which is resistant to corrosion, ensuring that the socket lasts longer and performs better in harsh environments.

1. Price: Compared to some other socket brands, Ko-ken sockets can be more expensive. However, the higher price tag is often justified by the superior quality and durability of the product.

2. Limited size range: This socket is only available in one size (15mm point with a 21mm square drive). If you need a different size, you will need to purchase a different socket.

3. Heavy: Due to its high-quality construction, this socket is heavier than some other sockets on the market. This may not be an issue for professional mechanics or serious DIYers, but it could be a drawback for those who are looking for a lighter socket.

The Ko-ken 3400mz-15 3/8 inch socket is a high-quality tool that is well-suited for professional mechanics and serious DIYers. Its precision construction, wide application, smooth engagement, and corrosion resistance make it a valuable addition to any toolbox. However, its higher price tag and limited size range may be a drawback for some users. Ultimately, if you need a reliable and durable socket for your impact wrench or torque wrench, and you are willing to pay a premium for quality, then the Ko-ken 3400mz-15 3/8 inch socket is an excellent choice.

If you are in the market for a high-quality 3/8 inch socket, and you need a 15mm point with a 21mm square drive, then the Ko-ken 3400mz-15 socket is an excellent choice. Its durable construction, smooth engagement, and corrosion resistance make it a valuable addition to any toolbox. However, if you need a different size or if you are on a tight budget, there are other socket brands that offer similar features at a lower price point. In that case, I would recommend researching other brands and comparing their features, prices, and customer reviews to find the best option for your needs.

Details:

Ko-ken 3400MZ-15 3/8 sq. The z-series construction ensures consistent performance, making this socket a practical tool for various fastening tasks. Drive shape: square. Socket 15mm 6 point length 21mm z-series silver.

Compatible with standard ratchets and handles, it is suitable for automotive, mechanical, DI projects. Input drive size: 3/8. Compact and lightweight, it fits neatly into toolkit for convenient storage.

specifications lightument:

• brand: Ko-ken
• mpn: 3400mz-15
• model: 3400 15
• part type: Socket
• color: Silver
• itemweight: 24
• packagelength: 81
• packagewidth: 32

seller lightument:

• # reviews: 386
• rating: 98.5%
• city: denver, colorado

returns lightument:

• time: 30 days
• paid by: buyer
• method: money back
• policy: returns accepted

offer lightument:

• options: ship-to-home
• sold #: 9
• availability: in stock
• prices: $24.99–$111.71
• item condition: New
• started: may 25, 2026
• in stock #: 5

payments lightument:

• credit card: discover
• other
• wallet: paypal

general lightument:

• category: Business & Industrial > Light Equipment Tools

shipping lightument:

• transit: 4-8 days
• service: standard
• class: standard
• type: fixed