Rafael Castillo
- Total activity 3
- Last activity
- Member since
- Following 0 users
- Followed by 0 users
- Votes 0
- Subscriptions 0
Articles
Recent activity by Rafael Castillo-
Is there a Proto Torque Wrench Calibration Facility in Canada?
There is not a Proto repair facility in Canada. Customer can send their tools to our Norcross GA location.
-
What is the maximum spread of the Proto J250G horseshoe washer pliers?
The maximum spread of the Proto J250G horseshoe washer pliers is 11 inches. These lock ring pliers apply external rings such as horseshoe lock washers and tempered steel lock rings onto gear and b...
-
What grade steel are Proto Wrenches made of?
We use AISI-ASE 4047 Grader Steel which has a 0.47% Carbon and a Molybdenum blend alloy. Because of the alloys used, we make a wrench with a higher carbon content (makes it stronger) but still main...