This wrench is made of qualified stainless steel, strong and firm, after grinding and polishing processing, the surface is smooth without burr.
The maximum opening is 105mm, with double head design and flat end, which is convenient to use.
Three rows of holes can extend the tool deep into the lens barrel and fix it with four round head screws.
Comes with a hex screw and a hex wrench, it can be used to replace two inner hex screws, use them to tighten the key opening tool.
Great accessory for DSLR camera lens.