Specification model:

[Two-Speed 12V]-1 Power +1 batch head

[Two-Speed 12V]-2 electricity +1 batch head

[Double speed 12V]-1 electric + batch head group + plastic box

[Double speed 12V]-2 electricity + batch head group + plastic box

[Impact 12V]-1 electricity +1 batch head

[Impact 12V]-2 electric +1

[Impact 2V]-1 electricity + batch head group + plastic box

[Impact 12V]-2 electricity + batch group + plastic box

[Double speed 21V]-1 Power +1 batch head

[Double speed 21V]-2 electricity +1 batch head

[Double speed 21V]-1 electric + batch head group + plastic box

[Double speed 21V]-2 electricity + batch head group + plastic box

[Impact 21V]-1 electricity +1 batch head

[Impact 21V]-2 electricity +1 batch head

[Impact 21V]-1 electricity + batch head group + plastic box

[Impact 21V]-2 electricity + batch head group + plastic box