These bits fit around the security pin to turn tamper-resistant Phillips screws. Use them to unlock electronic enclosures and other access-controlled equipment. Phillips bits align easily with fasteners but can't withstand much torque. Also known as pin-in-head Phillips bits.
Hex Shank—Also known as insert bits, these snap into hand tools. If you want to use them with power tools, attach a bit adapter (not included).
Steel—Best for dry environments, since moisture will cause these bits to rust.