Features: 1. PH2 cross screwdriver bits for drywall screws installation. 2. Constructed of chrome vanadium steel, which provides high hardness and long durability. 3. Depth stop design can effective limit screw penetration depth into drywall and avoid damage to board. 4. Designed for any power drill or cordless drill. 5. Automatically limits screws to proper depth in drywall. Specification: Material: Chrome Vanadium Steel Magnetic: Yes Insulated: No Quantity: 10pcs Color: Silver Bits Type: PH2 Total Length: Approx. 50mm/1.97in Weight: Approx. 200g Package Includes: 10 x Drywall Screwdriver Bits Note: Please allow slight error due to manual measurement. Thanks for your understanding.