Sealey 6 Piece 3/8" Drive Flexi Head Flare Nut Diesel Injection Wrench Set 3/8"

About this tool

This 6-piece diesel injection wrench set from Sealey provides specialist tooling for working on fuel injector lines across most diesel engines. Featuring flare nut spanner heads on 3/8" square drive shafts, these 6-point socket wrenches are specifically engineered to access and safely work on fuel injector connections without damaging vulnerable pipework. Manufactured from heat-treated Chrome Molybdenum steel heads with Chrome Vanadium steel shafts, the set delivers the strength and durability required for professional automotive and plant maintenance work. The blackened finish provides corrosion resistance, whilst the 180° flexible heads make these wrenches ideal for tight, awkward access points common in modern diesel engine bays. Each wrench features large, clearly marked size identification for quick selection during diagnosis and repair work. The comprehensive size range covers common diesel injector specifications, making this set suitable for mechanics, agricultural engineers, and plant fitters working on cars, vans, commercial vehicles, and machinery. Features and Benefits: • Flare nut design grips five sides of the nut to prevent rounding on delicate fuel line connections • 180° flexible heads provide access in space-limited engine compartments • Heat-treated Chrome Molybdenum construction for long-term durability • Large size markings enable quick identification in workshop conditions • Supplied in protective storage case for organised tool

Retailer description · Tooled Up · Observed 12 Oct 2026. Check the retailer’s listing for full specifications and contents.