Product Name: Single Cross Screwdriver Bits Material: S2 Tool Steel + Magnetic Color: Red + Grey Shank Diameter: Approx 1/4 Inch Length: Approx 50mm Features: - Automatically sets screws to proper depth in drywall. - These are designed to be used with any power drill or cordless drill. - Includes depth stop to limit screw penetration and damage to board. - Suitable for plasterboard screws locating and as drywall dDimpler bits, can matching with any power drill and cordless drill for normal usage. - Depth stop design can limit screw penetration and damage to Board, more useful easy to install the drywall screws, good decoration tools. - Depth setting bit tip offers screw gun feature in a power drill, shock resistant tool steel for maximum durability hardened core for extra strength and Reduced Breakage - Heat treated to resist breakage and wear, to control depth of screw during driving applications. - The Phillips drywall insert bit is designed specifically for use with Phillips drywall screws, with a 1/4 inches hex shank for use in bit holders. Package Weight: 11.0 G / 0.39 Ounces Package Dimensions (L*W*H): 50*10*10 MM / 1.97*0.39*0.39 Inches Retail Packaging: Yes, General Box Packing List: 1 x Single Cross Screwdriver Bits