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The WILLIAMS COMFORT PRODUCTS B-101 is a 3/8 inch drive extension measuring 1.5 inches in length, designed for use with standard 3/8 inch drive ratchets, breaker bars, and torque wrenches. This short extension provides the added reach needed to access fasteners in tight or recessed locations without sacrificing torque transfer. At 0.088 pounds, it is a lightweight hand tool suited for professional technicians working in HVAC, plumbing, electrical, and general mechanical service environments. It is sold individually and ships as a single unit.
This extension is well suited for residential and commercial service work where confined access points require a short drive extension rather than a full-length bar. Common applications include equipment panel fasteners, compressor mounting hardware, electrical enclosure bolts, and other recessed hex-head fasteners encountered during routine maintenance and installation. Trade professionals including HVAC technicians, plumbers, and electricians will find this size appropriate for day-to-day service calls.
Designed as an OEM-style replacement and standard fit for use with any 3/8 inch drive ratchet, breaker bar, or torque wrench following the standard square drive interface.
This extension is installed and removed by hand with no special tools required beyond the 3/8 inch drive ratchet or wrench it attaches to. Ensure the drive connection is fully seated before applying torque to avoid rounding fasteners or damaging the drive interface. When working on energized electrical equipment or pressurized systems, power down or depressurize before accessing fasteners per applicable NEC or IPC guidelines.
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