Tamper-resistant Types
Most of the following screw drives are considered tamper-resistant because of their obscurity. The exceptions to this are the breakaway and one-way screw drives that require special tools that destroy the fastener during removal. The first class of tamper-resistant drives is commonly used on equipment such as home electronics, to prevent easy access, reducing the incidence of damage or improper repair. Equally this can prevent people with the relevant technical knowledge from possibly performing a repair without having to return the unit to the manufacturer. However, widespread recent availability of assorted drive bits (including security types) minimizes this advantage, at least for some security types.
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