ITEM NAME:63.5mm Magnetic Screwdriver Holder 1/4" Hex Shank 25mm fit for PH2 Phillips Bits 10Pcs PH2 Head 25mm Long Driver Set for Philips Screwdriver Magnetic Bits SPECIFICATIONS.(Item included: 10x25mm PH2 Screwdriver Bits. Sharpness: PH2. Shank type: Hex shank. Compatible With: fit for Pneumatic screwdriver ,electric screwdriver etc. 6) Blades have special non-slip grooves for better grip on screw face.