

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The WILLIAMS COMFORT PRODUCTS JHW35164 is a 4 MM metric hex bit socket designed for 3/8 inch drive tools. It features a high-polish chrome finish that resists corrosion and wipes clean quickly between uses. With a 0.75 inch outer diameter and a 6 inch length, this socket suits tight-access fastener work common in HVAC equipment service, pump assemblies, and mechanical systems. Licensed technicians and service professionals who work with metric hex fasteners will find this a reliable hand-tool addition to their drive set.
This hex bit socket fits standard 3/8 inch drive ratchets, extensions, and torque wrenches. It is well-suited for service calls involving metric hardware on residential and light commercial HVAC units, hydronic heating components, and plumbing fixtures. The metric 4 MM hex profile matches Allen-head fasteners found on European-style equipment and many OEM assemblies encountered in the trade. Sold individually.
Designed for use with standard 3/8 inch drive ratchets, extensions, and torque wrenches requiring a 4 MM metric hex bit socket.
This socket is installed and used by HVAC technicians, plumbers, and mechanical service professionals working with metric hex fasteners. Always de-energize and lock out equipment before accessing fastened components. Ensure the socket is fully seated on the drive tool before applying torque to avoid rounding the fastener or damaging the socket. Inspect the socket for wear or cracking before each use.
Thanks for subscribing!
This email has been registered!