Proto J47701/4 Hex Bit Socket 1/4 in Drive 1/4 in Hex

Product Description

The PROTO J47701/4 is a hand hex bit socket designed for manual drive applications requiring precise hex fastener engagement. Built for 1/4 inch square drive tools, this socket accepts a 1/4 inch hex bit and delivers a 1 inch effective bit length with an overall length of 1-7/8 inches. It is a compact, single-piece drive tool suited for tight-clearance fastening tasks in mechanical, HVAC, electrical, and plumbing service work. Licensed tradespeople and experienced technicians reach for this style of socket when working hex-head fasteners in confined spaces where larger drive tools cannot operate effectively.

This hex bit socket is appropriate for both residential and light commercial service environments. It fits standard 1/4 inch square drive ratchets, extension bars, and T-handles. The 1/4 inch hex size corresponds to 6.35 mm, making it a common fit for machine screws, set screws, and hex-drive fasteners found in equipment panels, motor housings, valve assemblies, and electrical enclosures. Trade professionals across HVAC, plumbing, and electrical disciplines will encounter fasteners that this socket size addresses on a routine service call.

Key Features

• 1/4 inch square drive accepts standard ratchets, extensions, and T-handles
• 1/4 inch hex bit size equivalent to 6.35 mm for broad fastener compatibility
• 1 inch bit length provides solid fastener engagement depth
• Compact 1-7/8 inch overall length suits confined-space applications
• Sold individually, allowing single-piece replacement or kit addition

Compatibility

Designed as an OEM-style hand tool for use with 1/4 inch square drive ratchets, extensions, and manually operated drive handles in standard tool sets.

Installation Notes

This socket is installed by hand-drive tools only and is not rated for impact driver use unless the tool is explicitly rated for impact service. Ensure the square drive engagement is fully seated before applying torque to prevent drive slippage or rounding. When servicing energized equipment, follow applicable NFPA 70E lockout and tagout procedures before using hand tools inside electrical enclosures or panels.