内六角扳手

• 冂(outer boundary; fence)RADICAL
• 入(enter; go in)ASSOCIATIVE

Inside a fence, something that has already gone in becomes what is enclosed.

• 亠(lid; cover)ASSOCIATIVE
• 八(eight; divide in two)ASSOCIATIVE

The numeral six like a roof placed over two strokes represents balanced division.

• ⺈(blade (upper part); blade edge (top))ASSOCIATIVE
• 用(use; employ)ASSOCIATIVE

A sharp horn like a knife blade is used for stabbing, resembling the pointed horn of an animal.

• 扌(hand; arm)RADICAL
• 反(flip; opposite)PHONO-SEMANTIC

Using your hand to flip something upside down is the action of bending or pulling.

• 手(hand (pictographic))ASSOCIATIVE

The character 手 mimics the image of a hand with five fingers spread out.