The most commonly used security bit types are Torq-set, Snake-eye, Security Hex, Security Torx, and Tri-point. Security bits are probably not in everyone’s toolbox, but they can come in real handy.
Security fasteners are commonly found in equipment and appliance where the manufacturer makes it difficult to access on purpose. They are most commonly used on equipment and appliances with potential hazards such as industrial robotics, elevators, and even your microwave.
But they can come in handy when troubleshooting equipment that needs to be opened and is secured by security fasteners also known as tamper-proof fasteners.
Security bit types
1. Torq-Set Security Bit
The Torq-set security bit has 4 connecting arms similar to a Phillips bit but the difference is these arms are off-centered.
This makes it impossible to use a regular Phillips bit on a Torq-set fastener. It is commonly used in military and aerospace applications because of its torque-sensitive application.
Below is a picture of a Torq-Set style security bit.
2. Snake Eye Security Bit
The Spanner security bit commonly known as snake eye security bit gets its name from the similarity to a snake’s eyes on the fastener head.
These fasteners use two round holes or slots that are commonly used in elevators, train cars, restrooms to prevent tampering with equipment.
Below is a picture of a spanner security bit.
3. Security Hex Bit
The security hex bit is similar to a hex key bit (also known as an Allen key bit). The only difference being the security hex bit has an extruded pin to fit the pin on a security hex fastener.
A regular hex key bit will not fit into a security hex fastener because of the pin in the middle of the fastener head.
Below is an image of a security hex bit.
4. Security Torx Bit
A Security Torx bit has the same principle as a security hex bit. The only difference being it uses a Torx design. This will also make it hard to use a flat screwdriver because of the pin on the fastener.
Below is an image of the Security Torx bit.
5. Tri-Point Security Bit
The Tri-Point security bit is similar to a Philips bit but instead of 4 arms it only uses 3. The Tri-Point fasteners can be found on electronic equipment. Below is an image of a Tri-Point security bit.
Conclusion:
Now that you know what types of security bits there are out there don’t forget a manufacturer is making that equipment tamper-proof for a reason. Whatever you are working on could have electrical or mechanical hazards. Be sure to practice safe procedures and leave it to a professional if you don’t know what you’re doing. You can get a set of security bits here.