Features: Double end phillips screwdriver bits for extra versatility and the magnetic screw holder collar can lock the screw in place to make work easily. Phillips Screwdriver Bits with storage for case, easy to put and store your bits. Depth stop design can limit screw penetration and damage to board.Designed to be used with any power drill or cordless drill. Double for Cross for Head Screwdriver Bit Set, made of S2 alloy steel with heat treated for maximum durability, anti-impact. Phillips PH2, Hex Shank Size: 6.35mm/ 1/4-Inch, Overall Length: 65mm/ 2-1/2 Inch. Magnetic collar design can limit screw penetration and damage to board, more easy to install the drywall screws and plasterboard screws locating. Double end phillips screwdriver bits for extra versatility and the magnetic screw holder collar can lock the screw in place to make work easily. Specifications: Material: S2 Steel Length: 6.5cm/2.56in Package Includes: 10x Phillips Screwdriver Bits 1x Storage Rack note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.