About this product
1. Material: 45#
2. ER spanner heat treatment hardness: 40-45 HRC
3. ER spanner appearance do sandblasting coating processing
4. ER20A wrench works on ER20 collet A type nut
High Quality ER20A -Wrench Works on ER20 Collet A Type Nut
Hand tools, ER spanner/wrench, CNC 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.
1. ER Spanners Sample order is available
2. 80000 pcs per month.
3. Different types for your choice A, M, UM, TG type.
4. Spanners package with plastic bags.
5. Only for ER20A NUT.
