Kolvoii 61-Piece Thread Chaser Set, Metric, UNC & UNF Thread Restorer Kit

Key features

• SAE & METRIC THREAD REPAIR KIT: Covers both metric and SAE standards: UNC(silver): 5/8”-11, 9/16”-12, 1/2”-13, 7/16”-14, 3/8”-16, 5/16”-18, 1/4”-20; UNF(black): 5/8”-18, 9/16”-18, 1/2”-20, 7/16”-20, 3/8”-24, 5/16”-24, 1/4”-28; Metric(gold): M6-1.0, M6-1.25, M7-1.0,M8-1.0,M8-1.25, M8-1.5, M10-1.0, M10-1.25, M10-1.50, M11-1.50, M12-1.25, M12-1.50, M12-1.75, M14-1.50
• REVIVE & PRESERVE THREADS: Restore worn, damaged, or corroded threads without compromising the integrity of your metalwork—get smooth, reliable fastening on spark plugs, engine blocks, pipe fittings, and more. Never wrestle with cross-threading again
• ENGINEERED FOR ENDURANCE: Each piece is forged from heat-treated carbon steel and coated (zinc or black oxide) for superior hardness, rust resistance, and longevity—designed to withstand frequent use
• FAST, FOOL-PROOF RETHREADING: Color-coded, hex-shaped taps and dies fit any standard wrench or socket. Use the included pitch gauges and three file profiles to align, clean, and cut in one swift process
• WIDE APPLICATION: Ideal for mechanics, machinists, plumbers, and DIYers. Repair threads on cylinder heads, machinery parts, suspension bolts, household hardware, and specialized fittings—no specialist equipment needed
• ORGANIZED FOR ON-THE-GO WORK: Rugged blow-molded case with silver (UNC), black (UNF), and gold (Metric) coding keeps every tap, die, file, and gauge neatly in place—grab what you need and get back to work
• PROFESSIONAL PACKAGE: 3 x thread restorer files, 28 x thread chaser taps, 28 x thread chaser dies, 2 x thread pitch gauges, standard and metric

Free shipping included. 30-day hassle-free returns.