Andrew Pitonyak
12-29-2014, 12:14 PM
I was given a Wera Screwdriver that says PZ2 on it. I assume that this is meant for a Pozidrive screw head (I did a bit of research, but I am still confused). The guy who gave it to me told me that it was just a regular Phillips screw driver and that the extra parts sticking out just helped it grab a regular Phillips screw head better. At this point I am think that he is wrong and that I should use this screw driver (and some other bits) only with Pozidrive screw heads. Please enlighten me.
Same guy also gave me a double sided wrench (10mm / 13mm) and it is a bit confusing (not able to upload a picture at the moment).
On one side of the wrench there is a replaceable part shaped as normal for a wrench that has some teeth to grip well. If you roll the wrench over, the other side has a bunch of dimples that look like it is designed for an oddly shaped bolt head.
Here is a link to a version that has a ratchet on one end. Mine has no ratchet, just two different sizes.
http://www-us.wera.de/catalog_us.html?L=1&file=/en-US/root_category_combination_ratchet_wrenches.html
Perhaps I should understand based on this description (I added comments in red):
unique holding function, thanks to the metal plate in the jaw, reduces the risk of dropping nuts and bolts; replaceable metal plate in the jaw secures nuts and bolts with its extra hard teeth and reduces the danger of slipping (So that replaceable plate has teeth so things won't slip)
integrated limit stop prevents any slipping around the bolt head and allows higher torque to be applied (is this related to the ratchet?)
double-hex geometry makes for a positive connection with nuts or bolts and reduces the risk of slipping (is this the extra dimples?)
return angle of only 30° at the open end to avoid time consuming flipping of the wrench during fastening jobs (is this related to the ratchet?)
I am a bit confused.
Same guy also gave me a double sided wrench (10mm / 13mm) and it is a bit confusing (not able to upload a picture at the moment).
On one side of the wrench there is a replaceable part shaped as normal for a wrench that has some teeth to grip well. If you roll the wrench over, the other side has a bunch of dimples that look like it is designed for an oddly shaped bolt head.
Here is a link to a version that has a ratchet on one end. Mine has no ratchet, just two different sizes.
http://www-us.wera.de/catalog_us.html?L=1&file=/en-US/root_category_combination_ratchet_wrenches.html
Perhaps I should understand based on this description (I added comments in red):
unique holding function, thanks to the metal plate in the jaw, reduces the risk of dropping nuts and bolts; replaceable metal plate in the jaw secures nuts and bolts with its extra hard teeth and reduces the danger of slipping (So that replaceable plate has teeth so things won't slip)
integrated limit stop prevents any slipping around the bolt head and allows higher torque to be applied (is this related to the ratchet?)
double-hex geometry makes for a positive connection with nuts or bolts and reduces the risk of slipping (is this the extra dimples?)
return angle of only 30° at the open end to avoid time consuming flipping of the wrench during fastening jobs (is this related to the ratchet?)
I am a bit confused.