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The PROTO J5519M is a 19 mm, 12-point hand socket built for professional-grade fastener work. Machined from alloy steel with a chrome-plated finish, it accepts a 3/4 inch drive and meets ASME B107.110-2012 standards for socket tools. At 2 inches overall length, it falls in the standard-length category, making it a straightforward fit for the majority of bolt-access situations encountered in mechanical, industrial, and fleet maintenance work. Licensed tradespeople and experienced technicians rely on this type of socket for its dimensional precision and consistent drive engagement under torque.
This socket is suited for use in heavy equipment repair, industrial maintenance, fleet service, and general mechanical applications where a 19 mm fastener and 3/4 inch drive combination is required. The 12-point configuration allows entry at multiple angles, which is useful in tight or partially obstructed access areas. Standard-length design makes it compatible with most 3/4 inch drive ratchets, breaker bars, and torque wrenches used in these settings.
Designed as a standard OEM-style hand socket for use with 3/4 inch drive socket sets and drive tools in professional trade and industrial service applications.
Install and remove using a 3/4 inch drive ratchet, breaker bar, or torque wrench. Ensure the socket is fully seated on the fastener before applying torque to prevent rounding. Inspect the socket for cracks or wear before each use, and do not use damaged sockets. This product is not tether capable and should not be used in overhead applications where drop hazards exist.
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