Sygma industrial grade hex allen tamper resistant insert bits are ideal for driving hex allen security screws. The hex allen tamper resistant insert bits feature a security pin hole so that the fastener is a matching hex size. Thus, someone cannot remove a hex allen security screw with a non-matching insert bit. Additionally, these tamper resistant bits have a 1/4″ hex shank to fit with many popular power drills.
The heat-treated, shock resistant S2 tool steel creates an optimal combination of durability and strength.