Brief introduction
HOOK TYPE ER SPANNER,Wrench is the use of leverage wrenching bolts, screws, nuts and other threaded fasteners hand tools. Wrench usually made one or both ends of the handle opening or aperture sets of clamping bolts or nuts. When applied to the use of the direction of rotation along the threaded shank force can wrenching bolts or nuts.
Specifications
1.Model NO.:ER8C/ER11C/ER16C/ ER20C/ ER25C/ ER32C/ ER40C/ER50C wrench spanner
2. Material: Stainless Steel 
3. Hardness:HRC40-45
4. Standard:DIN6499 
6. Precision:below 0.008mm
7. Surface more smooth ,Feel comfortable, Nice Appearance
8. This spanner has the advantage of strength and adjustablility.
9. One wrench can be used for bolts of a variety of sizes by simple adjusting the jaw.
10. The handle is strengthed so that the wrench can be used safely with a hammer.
11. Circle Diam: 95-165mm
12. Overall Length: 370mm