Magnetic 200mm Extended Hexagonal Socket Wrench Hexagonal Bit Dia 5.5-19mm

Measure the width across the flats of your hex bolt head using a caliper or ruler. Match that measurement to the corresponding wrench size — for example, an 8mm bolt head requires the 8mm socket wrench. When in doubt, size down rather than up to avoid rounding the fastener flats.

Standard hex sockets typically range from 25mm to 75mm in length. The 200mm extended shank allows you to reach fasteners seated deep inside engine bays, machinery housings, or structural cavities where a standard socket and ratchet combination physically cannot fit or cannot generate enough clearance to turn.

The magnetic tip is designed to retain fasteners during positioning and insertion, preventing them from falling into inaccessible areas. It works reliably with standard steel hex bolts and screws. For very heavy fasteners or stainless steel hardware (which has lower magnetic permeability), the retention force may be reduced — confirm suitability for your specific application before use.

Compatibility depends on the drive size of your ratchet handle or torque wrench. Please verify the hex shank drive size of this wrench against your tool's drive socket before ordering. If you are unsure, contact us to confirm compatibility with your specific tool setup.

This wrench is designed for use with hand ratchets and torque wrenches. If you intend to use it with a power drill or impact driver, confirm that the hex shank is rated for impact use and that the bit fits your tool's chuck securely. Using non-impact-rated bits with impact drivers can cause premature wear or breakage.

If you have a specific one-time task, ordering a single piece in the exact size you need is the most cost-effective approach. For workshop use or ongoing maintenance work across multiple fastener sizes, ordering 3, 5, or 8 pieces in a range of sizes gives you better coverage and per-unit value. The 8-piece option is well-suited for building a comprehensive extended hex socket collection.

Always use the correct size socket for your fastener — a loose fit is the primary cause of rounding. Ensure the socket is fully seated on the bolt head before applying torque. Avoid using worn or damaged fasteners, and apply steady, controlled force rather than sudden jerking motions, especially on corroded or over-tightened bolts.