Proto J47101-1A Deep Standard Socket Set 101 Pc

Product Description

The PROTO J47101-1A is a 101-piece deep and standard socket set covering 1/4-inch, 3/8-inch, and 1/2-inch drive sizes in both inch and metric measurements. The set spans 1/4 inch to 1 inch and 4 mm to 19 mm across all three drive families. Sockets are 6-point and 12-point, chrome-finished steel construction. The set includes pear-head ratchets, extensions, a drive adapter, and socket bars with clips. It is designed for professional mechanics, HVAC technicians, and tradespeople who need a broad, job-site-ready socket selection covering both standard and deep reach applications.

This set is suited for residential and commercial service work where a technician needs deep socket reach for fasteners in confined areas, such as condenser fan motor mounts, pump flanges, electrical panel hardware, and equipment frame fasteners. The combination of inch and metric coverage in one kit makes it practical for work on domestic and imported equipment. The included spark plug sockets (5/8 inch and 13/16 inch on the 3/8-inch drive) add utility for engine-driven equipment and generator service.

Key Features

• 101-piece set covering deep and standard socket profiles in a single kit
• Three drive sizes: 1/4 inch, 3/8 inch, and 1/2 inch
• Both 6-point and 12-point socket configurations included
• Full inch and metric coverage from 1/4 inch (4 mm) to 1 inch (19 mm)
• Chrome-finish steel construction for corrosion resistance and durability
• Includes pear-head ratchets, multiple extensions, drive adapter, and spark plug sockets
• Lifetime warranty from PROTO

Compatibility

Designed for use with standard 1/4-inch, 3/8-inch, and 1/2-inch square drive ratchets and accessories. The included 1/2-inch female to 3/8-inch male drive adapter extends compatibility across drive sizes within the set.

Installation Notes

This set is installed and used by licensed mechanics, HVAC technicians, plumbers, and electricians across a wide range of service applications. Always select the correct drive size and socket depth for the fastener being turned to avoid rounding hardware. Ensure the socket is fully seated on the fastener before applying torque. Store sockets on the included bars and clips to maintain organization and prevent loss on the job site.