Helix Turning Tool Born From Necessity. 16 Comments . by: ... The tool utilizes an 8mm rod that will ensure the ID of the helix is indeed 8mm. ... a perfectly spaced helix is left in the wake.

It might be time to give up your wild Waze: New research suggests eliminating at least some left turns will make roads a lot safer.. For drivers in the U.S., turning left is one of the most ...

And 36 percent of fatal accidents involving a motorcycle involve a left-hand turn in front of a motorcycle, according to the National Highway Traffic Safety Association. Advertisement ...