Asahi LIGHTOOL Combination wrench sets

Hi Frank, thanks for your review. It is unfortunate that your wrench bent. It is the first time I’ve heard of one bending in more than 4 years of selling these. These wrenches are made according to strict JIS standards and exceed the torque specs of M10 bolts (Japanese 14mm hex) by a good margin. However, if you have a seized nut exceeding the torque specs and put your foot or an extension on the wrench and , it will break, like any tool. But perhaps yours had a manufacturing defect.

An M10 bolt's maximum tightening torque depends on its bolt grade and whether the threads are clean and dry or lubricated. For high-strength Grade 10.9 bolts, the maximum torque can range from around 57 to 82 Nm (42 to 60 ft-lbs), while lower-strength Grade 8.8 bolts are torqued to approximately 37-57 Nm (27-42 ft-lbs).

I am curious to know why you did not contact me first before writing this review.

David