Proto J4740C Torx Bit Socket Set 10 Pc T10-T55

Product Description

The PROTO J4740C is a 10-piece Torx bit socket set covering T10 through T55 sizes across two drive sizes. Six sockets in the 1/4-inch drive group handle smaller Torx fasteners from T10 to T30, while four sockets in the 3/8-inch drive group address heavier fasteners from T40 to T55. All sockets feature a chrome finish for corrosion resistance and are organized on a rail for quick inventory at a glance. This set is used by HVAC technicians, electricians, plumbers, and general service professionals who regularly encounter Torx-head fasteners in equipment panels, motor assemblies, and control enclosures.

This set suits a wide range of trade and industrial service applications where Torx fasteners are common. The smaller 1/4-inch drive sockets are well suited to light equipment covers, control boards, and electronic enclosures. The larger 3/8-inch drive sockets handle structural fasteners found in compressor housings, fan assemblies, and mechanical equipment panels. The rail storage format keeps the full set organized in a tool bag or service tray for fast access during service calls.

Key Features

• 10-piece set covers T10, T15, T20, T25, T27, T30 in 1/4-inch drive and T40, T45, T50, T55 in 3/8-inch drive
• Chrome finish provides corrosion resistance for service environments
• Rail container keeps all sockets organized and easy to audit
• Dual drive sizes in a single set reduce the need for separate socket collections
• Covers the most common Torx sizes encountered in HVAC, electrical, and plumbing equipment service

Compatibility

Designed for use with standard 1/4-inch and 3/8-inch drive ratchets, extension bars, and torque wrenches. Compatible with any Torx-head fastener in the T10 through T55 range.

Installation Notes

Always power down or de-energize equipment and follow applicable lockout/tagout procedures before removing Torx fasteners from electrical or mechanical assemblies. Select the correct drive size ratchet for the socket being used to avoid socket or fastener damage. Do not use impact drivers with these sockets unless the sockets are rated for impact use.