Size Name:4.0mm Hex key wrenches are tools used to Tighten or Loosen a screw with an internal hexagon drive or hex socket. Most common screws include Socket Head Cap Screws, Button Head Cap Screws, Flathead Cap Screws, and also Socket Set Screws.
H**S
Unique size great tool
The size I was looking for was not a standard in my store. Ordered from Amazon and they work well
S**8
too soft
Stripped out on first use. go with wiha
T**R
Fit well. Look to be good quality
Fit well. Look to be good quality
C**Z
Five Stars
work fine---happy
J**N
Five Stars
Perfect fit for BLANCPAIN FIFTY FATHOMS watch strap pins...!!
**D
having 2 is nice
Fit perfect
Trustpilot
3 days ago
1 month ago
