Original HD-AT4 4-piece heavy-duty truck set: HD red, HD yellow, HD brown and HD black Heavy-duty bracket included The BEST raw materials, specially heat-treated, make AccuTorq the most accurate torque socket in the world Patented AccuTorq "strobe marks" stop turning at precisely the correct torque EVERY time. There is NO "guess" work and no recalibration Solid one-piece construction of AccuTorq automotive and commercial truck sockets eliminates the wide torque variances unavoidable with socket extensions and adaptors. AccuTorq provides DEEP-well sockets for those special applications where regular socket depth is just not enough to get the job done. Accutorq ultrasonic inspection of EACH socket and it’s ISO 9001 Quality Certification of manufacturing processes make it possible for each AccuTorq socket to come with a LIFETIME warranty.
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