Pulling Tool for Broken Screw

This tool is used o pull out the broken screw form the hole.
Material: GCr15 with heat treatment

How to use this tool:
Step1: Place our tool into the inner hole of broken screw.
Step2: Rotate the tool with counterclockwise direction, then we will pull out the broken screw.

Set1: Red color, 5 in 1.      1#/2#/3#/4/#/5#
Set2: Red color, 6 in 1.      1#/2#/3#/4/#/5#/6#
Set3: Grey color, 8 in 1.      1#/2#/3#/4/#/5#/6#/7#/8#
Set4: Green color, 11 in 1.    One wrench, 1#/2#/3#/4/#/5#, each with one drilling bit
Set5: Grey color, 12 in 1.    1#/2#/3#/4/#/5#/6#, each with one drilling bit