Brand: Beta Tools
The 930 Series tubular wrenches from Beta Tools feature a 12-point socket at each end. The heavy-wall body is hollow so you can reach a nut at the base of a long stud. Holes in the body allow the use of a "tommy" bar cross handle. The shank of the wrench also has a hex profile between the sockets for use with a standard open-end wrench. Each wrench fits two different size fasteners for maximum coverage.
One end of this wrench fits fasteners with 6mm hex or bi-hex heads, and the other end fits 7mm heads. Measures 100mm Long (L) with a 9.5mm OD on the smaller end (Ø) and an 11mm OD (Ø1) on the larger. Each 12-point socket end measures 7mm deep (A), and the hollow body can accommodate a stud up to 4mm OD (Ø2). The hex body accepts your 8mm open-end wrench (not included). Weighs 37g.
Sold individually. The optional Beta Tools 940/1 Tommy Bar Handle is sold separately.