An opening at the tip accommodates the pin in the recess of tamper-resistant pentalobe screws. Use these bits (also known as insert bits) in hand drivers or with a bit adapter in power tools.
Turn the screws found in Apple devices. Also known as insert bits, use these in hand drivers or with a bit adapter in power tools. To fit the bit into a 1/4" hex shank driver, use an adapter for 4 mm bit hex shank size.