Uxcell a12112700ux0588 10 Pcs 1/4" Hex 50mm Length 2.5mm Phillips PH0 Magnetic Screwdriver Bits (Pack of 10) Product name: phillips screwdriver bit; bit type: Ph0 Hex size: 1/4"; bit diameter: 2.5Mm/ 1/10" Total length: 50Mm/ 1.97 inch