Proto J98330 33 Piece Master Tool Set 3/8 1/2 Drive

Product Description

The PROTO J98330 is a 33-piece master tool set covering 3/8 inch and 1/2 inch drive applications in inch measurement. The set is designed for professional tradespeople who need a reliable, multi-drive collection for mechanical, HVAC, plumbing, and electrical service work. Stored in a tool chest container, it includes ratchets, extension bars, 12-point standard sockets, combination wrenches, and a ball pein hammer. The set carries a lifetime warranty and is not tether capable. At 9.92 pounds, it is substantial enough for shop use while remaining portable for field service calls.

This set is suited for residential and light commercial service environments where both 3/8 inch and 1/2 inch drive tools are needed in a single organized kit. HVAC technicians, plumbers, electricians, and mechanical contractors will find the range of included sockets and wrenches useful for equipment installation, component replacement, and routine maintenance tasks. The tool chest container keeps components organized and accessible on the job.

Key Features

• 33-piece set covering 3/8 inch and 1/2 inch drive sizes
• Includes 3/8 inch drive 12-point standard sockets: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, and 3/4 inch
• Includes 3/8 inch drive classic pear head ratchet at 7 inches and a 3 inch extension
• Includes 3/8 inch by 6 inch extension bar
• Combination wrenches in 12-point configuration across multiple inch sizes
• Ball pein hammer included
• Lifetime warranty on the full set

Compatibility

Designed as a general-purpose inch-measurement master tool set compatible with standard 3/8 inch and 1/2 inch drive accessories and fasteners commonly found in mechanical and trade service applications.

Installation Notes

This tool set is intended for use by licensed trade professionals including HVAC technicians, plumbers, electricians, and mechanical contractors. Always de-energize electrical equipment and shut off gas or water supply before using hand tools on live systems. Inspect all tools for wear or damage before use and do not use damaged tools. Store the set in the included tool chest to prevent loss of components between service calls.