This is the ultimate Screwdriver Bit Set with any imaginable pattern! These different bits will allow you to open almost every "tamper proof" and "security" fastener out there!The Electronic Screwdriver Set have ergonomic handles with excellent non-slip grips, the shafts are fully insulated and rated for 1000V. The Precision Screwdriver Set provides you with 31 of the most popular Phillips and slotted screwdrivers for a wide range of fastening applications, the contains all the smaller sizes you need for working on electronic gear. This Precision Screwdriver Set has the most frequently used tools for telecom install and maintenance. Precision Screwdriver Set is an absolute must for telecom and electrical technicians where protection from bodily harm is required. The insulating material used is impact resistant and flame retardant.