View Single Post
  #23  
Old 05-01-2020, 01:18 PM
bILLwOJO bILLwOJO is offline
Member
 
Join Date: Nov 2015
Posts: 32
Default

As a industrial machine tool service tech I have used a lot of different screwdrivers and the best I have found by a wide margin are the Swiss made PB Baum drivers. Attention to detail is excellent.
A conventional flat blade screwdriver is ground to a wedge shape and chrome plated will "cam out" when high torque is applied. This will damage or destroy the screw head.
The Swiss made PB Baum driver is wedge shaped till it nears the tip and than is straight at the end. It is also black oxided at the end so it is not slippery like chrome. End of buggered up screws!
For years I used to regrind my flat blade screw drivers to the same geometry that PB Baum uses, now I can just buy them.

BillWojo
Reply With Quote