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The PROTO J1212BASD is a 12-point combination wrench designed for professional fastener work in mechanical, plumbing, and electrical trade applications. It features a 3/8-inch head size with a 15-degree offset angle, allowing clearance in tight or obstructed work spaces. The wrench is constructed from steel and measures 6.25 inches overall, making it compact enough for confined access while delivering solid torque on standard hex fasteners. It is tether-capable, supporting use in elevated or safety-critical environments where dropped-tool protocols apply. This wrench meets ASME B107.100-2010 standards and carries a lifetime warranty.
Suited for residential and commercial service work, the J1212BASD fits into toolkits used by HVAC technicians, licensed plumbers, electricians, and general mechanical contractors. The 15-degree offset box end provides working angle advantage in recessed or partially obstructed fastener locations. The straight handle and 12-point box geometry allow incremental ratchet-style repositioning in tight swing arcs without a separate ratchet tool. This wrench is sized for 3/8-inch fasteners commonly found in equipment panels, pipe flanges, and mechanical equipment mounting hardware.
Designed as a standard 3/8-inch combination wrench for use with SAE hex fasteners in mechanical, HVAC, plumbing, and electrical trade applications.
This wrench is a hand tool requiring no installation. Power down or de-energize equipment before performing fastener work on electrical panels or mechanical assemblies. When working at height or near open grating, engage the tether attachment point to a rated tool lanyard per applicable worksite dropped-object prevention requirements. Do not use as a striking tool or apply pipe extensions to the handle.
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